z varies directly with x and inversely with y. When x = 6 and y = 2, z = 15. What is the value of z when x = 4 and y = 9?

North High School has 5000 students. South High School has 1/10 as many students. How many students are there at South High School?

4 workers require 5.5 m of mortar for 3 days when working 8 hours a day. How much m mortar can 6 workers work by working 2 hours each 10 hours?

A football game has 13 fans for every 7 players. if there are 540 more fans than players. how many players are there

The radius of a circle is 5 inches. What is the length of a 90° arc? 90° r=5 in

What is 14 tens 5 hundreds and 18 ones

Find the product. (6a + b) 2

If ben has 3 apples and give 1, how many does he have left?

Melinda has ten fewer nickels than quarters. She has $5.20 in the bank. How many coins of each type does she have.

Why can't a vertical line intersect a function more than once?

you are running a concession stand at a basketball game. You are selling hot dogs and sodas. Each hot dog costs $1.50 and each soada $0.50. At the end of the night you made a total of $78.50. You sold a total of 87 hot dogs and sodas combined.