Pls I'm going to be in trouble if I can't get this In by tomorrow

Answer:
a. True.
b. Unsure, sorry. :(
c. True.
d. False.
Step-by-step explanation:
a. 15x2.72=40.8
b. Unsure, sorry. :(
c. Slope=x,y
d. x decreased, y would decrease and not increase.
I hope this helped! Good luck! <3
-YAND3R3