Question

Megan has already saved $18 and she earns $4 per hour working four hours on each Saturday and 3 hours on each Sunday. Rhoni has already saved $22 and she earns $3 per hour and works 6 hours each week. If they combine their money, in how many weeks will they be able to afford a $316 stereo?

Answer 1

In one week Megan makes 28 dollars 
In one week Rhoni makes 18 dollars
Combined per week they make 46 dollars
you do 316/46
Which equals 6.86956521739
Basically in 7 weeks they can buy the stereo