Please Help ASAP! What values are in the domain of the function f(x)= 4-2x, if the range is {0,4,8}

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

The lengths of all sides of a triangle are integers when measured in decimeters. one of the sides has length of 1 dm and another of 3 dm. find the perimeter of the triangle.'

Find the commission on a $590.00 sale if the commission is 15%.