Is coin countable or uncountable

Find three consecutive numbers where the product of the smaller two numbers is 46 less than the square of the largest number? Write the decimal in numbers six hundred four ten thousandths? How many gallons of milk does a cow give in 3 months if they give 1500 in one year? 4.8 as a fraction? How is division repeated subtraction? What is nine tenths of fifty? Who first used the symbol pi when referring to the quotient obtained when the circumference divided by the diameter of a circle? What kind of adverb is when? What I a 4 over 6 as a percentage? Is 1035 divisible by 2? How do you write 800000 in word form? How many billion dollars in trillion dollars? What number is greater than 2 and less than 3? How do you write decimal 0.29 as a fraction? What is the quotient of 35 divided by 2030? 0.7km equal to how many miles? What is 3.77 rounded to one decimal place? How do you write 6.48 million? How do you sketch a plane that intersects the first plane but not the second? If you are 19 what year are you born in?