Find the value of a, for which point P( a/3, 2) is the mid-point of the line segment joining the points Q( -5,4) and R(-1,0).

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?

Which expression is equivalent to 3^3 + 2^2?

Give the functions f(x) = |x + 2| - 3, what is the domain? a,b,c, or d all real numbers x > 2 x < -2 all real numbers and x cannot equal to 2