Encuentra el perímetro de un circunferencia que tiene un radio de 2.5 cm

For the equation below, x is the input and y is the output. y = -4x + 3 if the input is -8, then the output is

Diana is painting statues she has 7/8 of a liter of paint each statue requires 1/20 of a liter of paint how many statues can she paint?

Combine like terms to make a simpler expression 3z+z