Im not sure but maybe 1 adult and one child but im not sure if this is a trick question
Answer:
Its A.
Step-by-step explanation:
remember its rectangle 1 + rectange 2.Once i did that i have seen the total volume must be greater then answer B
so it must be a
Answer:
75%
Step-by-step explanation:

The initial is 21 and the rate of change is the slope so it would be 6