I will rate them brainliest and 5 stars and thanks to whoever answers the part a and part b correctly
Please help!!

Answer:
A=40
B=.625
Step-by-step explanation:
1.25/.25 is 5
1/.25 is 4
.5/.25 is 2
5 x 4 x 2 is 40
multiply all of the sides together
or
multiply the boxes sides together then x 40