Natalie made more than $57 washing cars. She charged $7.50 a car and earned $22 in tips. What is the minimum number of cars that she washed?

4

Step-by-step explanation:

57 = 7.50x + 22

subtract 22 from both sides

35 = 7.50x

divide both sides by 7.50

4.66666666667 = x

since you cant have .666667 of a car, you would round it down to 4

  q

step-by-step explanation:

each line from a vertex to the midpoint of the opposite side is called a median. the point where the medians intersect, point q, is the centroid.

the centroid of δabc is point q.