Which was the decade of high inflation and high unemployment
CPI is the indicator of inflation in any country.If CPI is high it means inflation is high.
no ,but it is caused by econemy
A graph that shows that there is a relation between unemployment and inflation: One can either have a high inflation and low unemployment or low inflation with high unemployment.
Yes, it is possible to have both inflation and recession occurring simultaneously. This situation is known as stagflation, where there is a combination of high inflation and high unemployment or economic stagnation.
Which was the decade of high inflation and high unemployment
CPI is the indicator of inflation in any country.If CPI is high it means inflation is high.
no ,but it is caused by econemy
A graph that shows that there is a relation between unemployment and inflation: One can either have a high inflation and low unemployment or low inflation with high unemployment.
Yes, it is possible to have both inflation and recession occurring simultaneously. This situation is known as stagflation, where there is a combination of high inflation and high unemployment or economic stagnation.
Germany implemented policies to help stop high inflation.
High rates.However, high interest rates are usually a consequence of high inflation rates and so what matters is not the interest rate but the real interest rate which is the nominal interest rate relative to the inflation rate.Thus a 3% interest rate when inflation is 1% is better that a 5% interest rate when inflation is 4%.
I believe that this is called high inflation or hyperinflation. Hope this helps.
Inflation is the continuous rise in the general price level of goods and services in an economy over time. When inflation increases, the purchasing power of money falls, meaning the same amount of money buys fewer goods and services than before.  Inflation usually increases because overall demand in the economy grows faster than the supply of goods and services, production costs rise, or the money supply expands. When people have more money and demand more products, producers raise prices. Likewise, if costs of raw materials or wages go up, businesses pass those costs to consumers as higher prices.  In daily life, inflation shows up as higher prices for food, fuel, housing, and everyday items. This is measured using price indexes like the Consumer Price Index (CPI). 
inflation went down, but unemployment remained high
There does not have to be any correlation between the two. High inflation, on the other hand, will decrease purchasing power if salaries don't go up as much as the inflation.
Generally, low inflation is better for society because inflation has costs associated with the reallocation of assets and their value (that is, it costs money for people to change their decisions when inflation changes the value of their goods/services).