The answer would ne answer choice b. I don't know what the last answer choice was though.
20 : 0.75 = 40 : 1.5 = 80 : 3
10 weeks
Duane adds $5 every other week so that's 5 weeks out of 10. 5 x 5 = 25
Mick adds $2 every week so,
2 x 10 = 20
25 + 20 = 45
