Which equation results from taking the square root of both sides of (x + 9)2 = 25?
Ox+ 3 = 15
Ox+ 3 = +25
Ox+ 9 = 15
Ox+9 = +25

Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?

Micheal is 4 times as old as brandon and is also 27 years older than brandon. how old is micheal

The function f(x)= -(x+5)(x+1) is down. what is the range of the function?