Z varies directly with x and inversly with y^2 what is the value of z when x=4 and y=9

What is the difference between earth's highest mountain and its deepest ocean canyon? what is the difference between mars's highest mountain and its deepest canyon? which difference is greater? how much greater is it?

A petroleum company has two different sources of crude oil. The first source provides crude oil that is 65% hydrocarbons, and the second one provides crude oil that is 90% hydrocarbons.

What is the square root of 999?

Solve the inequality 56>=4y

1000 to the second power - 89 to the second power

You travel 60 kilometers in 1.5 hours. What is your average speed?

How many pounds of water are in a 55 gallon shipping drum?

A snail travels at a rate of 2.58 feel per minute Write a rule to describe the function. How far will the snail travel in 9 minutes? D (t) - 2.68: 3.49 D (t) = t+2.58; 11.58 ft d (t) = 9t; 23.22 ft d (t) = 2.581; 23.22 ft

What is the least number of bowling balls to make the mode 14 pound so

Flying saucers pizza charges $0.15 per square inch for circular pizzas. If a pizza is measured by the diameter, how much will flying saucers pizza charge for a 7 inch, 10 inch and 14 inch pizza?