Answer:

Step-by-step explanation:
Let
x------> the number of days
y----> the cost of renting a car
we know that
For 

For 
The rate is equal to

so

In this problem. the car has been rented for more than a week
therefore

The cost of renting a car is equal to

The quotient of a number and 15
Answer:
a2+b2=c2
Step-by-step explanation:
e.g:
a=5 b=2 c=?
52+22=c2
25+4=c2
29=c2
square root of 29= c
c=5.385164807
Answer:
x=-6
Step-by-step explanation:
(3/1*1/3)=1
-2*3=-6
x=-6
5/12, change the denominator to 12 cuz it has to be common