Answer:
15
Step-by-step explanation:
all triangles are 180 so 180-75-90 =15
Given:
Terri plans to charge a base fee of $10 plus $7 per hour for babysitting.
To find:
The function that could be used to represent her total charge for the babysitting service, y, as a function of the number of hours she babysits, x.
Solution:
Let y be the total charge for the babysitting service for x hours.
Base fee = $10
Additional fee for one hour = $7
Additional fee for x hour = $7x
Total fee = Base fee + Additional fee for x hours

Therefore, the equation of required function is
.
Answer:
5/12
Step-by-step explanation:
(7/4 + 1 + 9/4)/12
Compute the number in the parenthesis
(5)/12
Simplify
5/12
D. 2(n-8)
The difference of a number and eight is separate from being multiplied by 2 which is why you would use parenthesis.