ethan and david are brother. ethan is three years older than david, and the sum of their ages is 17, how old is david?

Cards for Candy Two ladies played cards for candy; the winner received one piece per game from the loser. When it was time for one of the ladies to go home, one lady had won three games, while the other lady had a profit of three pieces of candy.

Deon, a scheduler at Mangel-Wurzel Transport, gets a call from a regular customer needing to move 19.8m^3 of rock and soil, which Deon knows from previous experience has an average density of 650/kgm^3.

A teacher wants to sent 5 students to the library each day. There are 22 students in the class. How many ways can she choose 5 students to go to the library on the first day?

How much times does 7 go into 17?

Paul is purchasing a dehumidifier for $162.75, including tax. He gives the sales clerk 1 fifty-dollar bill, 4 twenty-dollar bills, and 7 five-dollar bills. How much should he receive in change?

Find an equation using absolute value that has the given solutions, a. two solutions, 22 and 22 b. two solutions, - 51 and 5 c. two solutions, - 9 and 39 d. one solution, 18

An object is launched from a platform. It's height is meters is modeled by: h (x) = - 5 (x+1) (x-9) where x represents the time in schools after the launch. How many seconds after launch will the object hit the ground

Each of the p children at a park receive 3 balloons. If the children receive at least 150 balloons in all, find the minimum number of children at the park.

1. z^2 = 1 √{ } = √{ } z = ± { } The solutions are { } and { }

What is the rate for 171 And 3