How many applications will your mother actually use on her new cell phone? solve the equation you wrote in part b to find the unknown variable

Arecipe uses 2 cups of sugar to make 32 brownies. how many cups of sugar are needed to make 72 brownies?

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500