Question 28 of 43 Mahua has money automatically deposited into a savings account each
week. After 5 weeks, she has $20. After 7 weeks, she has $28. The unit rate is
measured in dollars per week. What is the constant of proportionality?

A. 1 / 2
B. 4.
C. 8
D. 15

Someone answer this asap for gabriella uses the current exchange rate to write the function, h(x), where x is the number of u.s. dollars and h(x) is the number of euros, the european union currency. she checks the rate and finds that h(100) = 7.5. which statement best describes what h(100) = 75 signifies? a. gabriella averages 7.5 u.s. dollars for every 100 euros. b. gabriella averages 100 u.s. dollars for every 25 euros. c. gabriella can exchange 75 u.s. dollars for 100 euros. d. gabriella can exchange 100 u.s. dollars for 75 euros.