Twice last month, judy carter rented a car from a car rental company and traveled around the southwest on business. the company rents its car for a daily fee, plus an additional charge per mile driven. judy recalls that her first trip lasted 4 days, she drove 450 miles, and the rental cost her $ 233.50 . on her second business trip she drove 200 miles in 3 days, and paid $ 149.00 for the rental. find the daily fee, and find the mileage charge.

Day rate: x
Charge per mile: y

4x+450y=233.5
3x+200y=149

12x+1350y=700.5
12x+800y=596

First equation minus the second equation
550y=103.5
Y=207/1100=0.188182
X=(149-414/11)/3=37.1212

Okay so for every triangle has three angles that always add up to 180 degrees. and to tell the difference between whether they are secure, right or obtuse is that acute: has one angle that is less than 90 degrees. right triangle means there is at least one angle that is exactly 90 degrees. and an obtuse angle has an angle that is bigger than 180 degrees. i’ll do #13 as an example: 13. 40 and 50 so if every triangle has 180 degrees 40+50= 90 degrees then180-90= 90 degrees so the third angle is 90 degrees and because this triangle has a 90 degree angle it means it is a right triangle