This question has 3 parts answer all parts and get 100 points
grace earns $7 for each car she washes. she always saves $22 of her weekly earnings. this week, she wants to have at least $65 in spending money. how many cars must she wash? enter and solve an inequality to represent this situation. enter your value as a simplified mixed number, if necessary.

part 1.) the inequality is - ≥
part 2.) the solution to the inequality is n
part 3.) grace must wash at least cars, since n must be a whole number.

Part 1) The inequality is 7n-25≥65

Part 2)The solution to the inequality is n equals 12.85

Part 3) Grace must wash at least 13 cars, since n must be a whole.

Step-by-step explanation:

7c ≥ 65+25

7c ≥ 90

c ≥ 13

She has to wash at least 13 cars.

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x