Only three rectangles are needed, the one at the bottom and the two at the sides.
I hope this helps.
YOU'RE WELCOME :D
Replace x with 7
10(7) -2(7)
70 - 14
56
f(7) = 56
It is 40 minutes late. There are 15 minutes to the next hour when it is 7:45, and then add the number of minutes after the next hour, which is 25 minutes because it's 8:25. 15 + 25 = 40 so the pizza is 40 minutes late.