Charlene can spend no more than $225 on the Art Club's supply of brushes and tubes of paint. She needs at least 20 brushes and at least 56 tubes of
paint. Brushes cost $3.25 each while tubes of paint cost $1.50 each. Which of
the following combinations of brushes and tubes of paints is not possible for
Charlene to purchase?

b.-4 units

all you   do is count how many times you move

we can't see all full 4 options, but if this is the full option, than the very left one is correct:

-2/5 * -3 3/4

remake the question, adding a picture of all the question, or write down the full left and right answers.

step-by-step explanation:

gym b charges $1.05 less per hour than gym a.