Diana and sue made $ 241.5 per week
<em><u>Solution:</u></em>
Given that Diana and Sue clean homes for a summer job
The charge 70$ per house plus 15% tip
charge = $ 70 plus 15 % tip
So 15 % tip is made for $ 70
<em><u>charge per house is given as:</u></em>
charge per house = 70 + 15 % of 70

Thus charge per house is $ 80.5
<em><u>If they clean 3 house per week, then the total charge is:</u></em>
charge for 3 house = charge for 1 house x 3

Thus Diana and sue made $ 241.5 per week