What does unh unh mean?

How many minutes are there in 2400 seconds? Is 1.9 greater than 1.89? What is a 10 point type size called? What is 36x47? What is 4484 divided by 19? What are some antonyms for the word unique? Is it true or false that A number can be between approximately a positive 1 followed by 308 zeros and a negative 1 followed by 308 zeros? When converting from a small unit to a large unit do you multiply or divide? How do you write 4.625 percent in words? What is a quarter of 35? How many walking miles in 3 hours? Abdul's average speed is 40 mph in heavy traffic and his average speed is 50 mph in light traffic If he is in heavy traffic for 1 hour and light traffic for 3 hours how far does Abdul travel? What three numbers add up to 49? How many times can 5 go into 2001? What is the largest 5 digit-number that can be formed using the digits 7 and 9? How do you describe angles? What is difference between sum and add? What is low viscosity? What is 1.65m subtract 95cm? Who invented polygons?