SOLUTION: Hello I have a hard time when it come to math word problem , Why Because I don't be understanding how they want you solve the math problem. I've been stuck on 3 math word problem

Question 472089: Hello
I have a hard time when it come to math word problem , Why Because I don't be understanding how they want you solve the math problem. I've been stuck on 3 math word problem that I cant seem to figure out . Someone please help me .

Problem # 1) Selena left a $12.76 tip for a meal that cost $58.
a) What percent of the cost of the meal was the tip?
b) What was the total cost of the meal including the tip?

Problem # 2) Fine Line Trucks rents an 18-ft truck for $42 plus 35� per mile. Judy needs a truck for one day to deliver a shipment of plants. How far can she drive and stay within a budget of $70?

Problem # 3) On an average weekday a full-time college student spends a total of 7.1 hr in educational activities and in leisure activities. The average student spends 0.7 hr more in leisure activities than in educational activities. On an average weekday how many hours does a full-time college student spend on educational activities?
Answer by jorel1380(3719) (Show Source): You can put this solution on YOUR website!
12.76/58=22%!!!!!!
58+12.76=$70.76..
-----------------------
42+.35n=70
.35n=28
n=28/.35=80
Judy can drive up to 80 miles and stay within budget..
----------------------
n+n+.7=7.1
2n=6.4
n=3.2
The average student spends 3.2 hours on educational activities..
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