Eva begins an 8 week program to improve her health. By the end of first week, she can do 10 sit-ups in a row. By the end of the second week, she can do 15 sit-ups in a row. By the end of the third week, she can do 20 sit-ups in a row. If Eva continues at this rate, how many sit-ups can she do in a row by the end of the training program?

30 fine years ya know I was in England robing a back sooo

in 8 weeks she can do 45 sit ups

Step-by-step explanation:

add 5 to each week

f(x) = y

f(-3) = -5

step-by-step explanation:

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).