Jackie has two jobs. she earns $14/h in job a and $16/h in job b. she would like to earn $560 in a week. let a represent the number of hours she works in job a, and let b represent the number of hours she works in job b. which function relates the number of hours she works in job b to the number of the hours she works in job a? a. b = -8/7a + 40 b. b = -7/8a + 35 c. b = 7/8a - 35 d. b = 8/7a - 40