5. Class 7887 has 2.7 math classes daily. How many math classes do they have after 21 days?
PLEASE ANSWER

50-60=10

step-by-step explanation:

600,000,000,000, or 6e14

step-by-step explanation:

5

10

15

20

25

30

35

40

45

50

55

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).