Question

marcus and his twin sister marcie decide to save $25 each week to buy a video game console. how long will it take for them to save $675?

Answer 1

Together they save 25 + 25 = $50 per week.
Time = 675 ÷ 50 = 13.5 weeks.

So it takes 13.5 weeks (i.e., 13 weeks and 3.5 days). To have at least $675, they'd need 14 weeks.