Kelly earns a 7% commission on the total amount of her sales. this year, she had $210,000 in sales.

Which of the following represents the range of the graph of f(x) below

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)

Carl is hanging pictures in his home. there is a space on a wall that has a width of 4 feet. carl has pictures with different widths. which picture width would fit in the space on the wall? a. 46 inches b. 60 inches c. 50 inches d. 54 inches