Bill rode his bicycle 8 miles on Saturday. On Sunday, he rode his bicycle 5 times the number of miles he rode on Saturday. Part A: Round the number of miles Bill rode each day to the nearest ten. Use the rounded numbers to show why it is not reasonable to say that he rode more than a total of 100 miles on Saturday and Sunday combined. Show your work.

1     sepan

2     encuentren

3     tenga

4     hable

5   parezca

6   llegue

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).