Manco went scuba diving. As he dove deeper, the water pressure around him increased at a constant rate. The table compares Manco's depth (in meters) and the water pressure around him (in atmospheres).
Depth (meters)
Pressure (atmospheres)
13
2.3
17
2.7
21
3.1
What is the rate of change of the water pressure?

i think the answer would be c

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).

it would be 3 ÷by 6 because the number on each side