It's a math riddle

"When I was 4 my brother was half my age, If I'm 18 now, how old is my brother?

Find all values of aa that make |a|=0|a|=0. give your answer as a comma-separated list.

The length of a rectangle is 3 feet less than twice the width of the rectangle. If the perimeter of the rectangle is 264 feet, find the width and the length

What is the largest multiple of 9 which is smaller than - 70?

A rectangular painting canvas has the dimensions of 22 by 23 inches. Find the area, in square inches, of the painting. Use the formula, area = length * width

How do you simplify 18x-5-5x+9

Which expression is equivalent to (2mn) ^4/6m^-3 n^-2? Assume m=0 n=0

Admission to a county fair is $4.50 per person. The Rodriguez family pays $22.50 for admission to the fair. Which equation can you use to find p, the number of people in the Rodriguez family?

What is the slove system of linear equation by elomination of 8x-5y=11 and 4x-3y=5

If the parent function f (x) = x is modified to g (x) = 2x^2 + 1, which statement is true about g (x) ? A. It is an even function B. It is an odd function C. It is both an even and an odd function D. It is neither an even nor an odd function

Choose the smallest set of which {5,2,23} is a subset