Which of thses is our number system based on A. 2s

B. 10s

C. 20s

D. 100s

15. A survey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand X aspirin. How many doctors use brand X aspirin?

McKenzie bought 1.2 pounds of coffe for $11.82. What was the cost per pound?

Convert the unit rate: 4mi/h = ft/min

In the auditorium there are 27 red chairs and 63 blue chairs. what is the ratio of the number of red chairs to the number of blue chairs?

A student athlete runs 3 1/3 miles in 30 minutes a professional runner can run 1 1/4 times as far in 30 minutes how far can the professional runner run in 30 minutes

Is - 1/3x less than or equal to - 6

When a plane flies with the wind it can travel 1680 miles in 3 hoursWhen the plane flies in the opposite direction against the wind, it takes 4 hours to fly the same distance Find the average velocity of the plane in still air and the average

Julia wrote 14 letters to friends each month for y months in a row. Write an expression to show how many total letters she wrote.

Find the GCF of 44 and 66. a0

Is 0.602 equvalent to 0.62