A group of 42 children all play tennis or football, or both sports. The same number play tennis as play just football. Twice as many play both tennis and football as play just tennis. How many of the children play football?

A scientist uses 3/4 of an ounce of sulfuric acid each day. How many days does it take him to empty a jar, if each jar contains 24 ounces of sulfuric acid?

How do i solve - 5 ((3x) - 1) ?

5x + 5 equals 16 - 6x

A cell phone tower and a fence are on the same property. the fence is 8 feet tall and has a shadow that measures 14.5 feet. the shadow of the cell phone tower measures 72.5 feet. how tall is the cell phone tower?

maria has 30 sheets of green paper. she uses 3/5 of the sheets for a project. how many sheets of paper does maria use for the project.

If $3,978 is to be shared equally among 17 persons, then each person should get exactly $

The capacity of an elevator is either 1515 children or 1111 adults. If 77 children are currently in the elevator, how many adults can still get in?

What is the negation of the following statement: "n is divisible by 6 or n is divisible by both 2 and 3." A. n is not divisible by 6 or n is divisible by both 2 and 3. B. n is not divisible by 6 and n is divisible by both 2 and 3. C.

192ft oz=pt What is the answer to the problem

Robin earned $4,320 in 9 weeks and worked 40 hours in each week. How much did he earn per hour?