Answer:
6y - 3y - 7 = -2 +3
Simplify both sides:
3y -7 = 1
Add 7 to both sides:
3y = 8
Divide both sides by 3:
y = 8/3 = 2 2/3
There is only one solution.
Answer:
The answer is "25".
Step-by-step explanation:
Please find the graph in the attachment.

Calculating the triangle two other sides:

let

Answer:
f^-1(x) = -1/8x +1/4
Step-by-step explanation:
To find the inverse of a function
Exchange x and y and then solve for y
y =-8x+2
Exchange x and y
x = -8y+2
Now solve for y
Subtract 2 from each side
x-2 = -8y+2-2
x-2 = -8y
Divide by -8
(x-2)/-8 = -8y/-8
Distribute
-1/8x +1/4 = y
f^-1(x) = -1/8x +1/4
6 hours to 1 book is a unit rate because the independent variable (books) is equal to 1.
Hope this helps!
The first answer is C
The second answer is C
The third answer is B
Hope this helps!