Item 3 What are the solutions to the system of equations?
{−x+y=4y+12=x2+x

(0, 4) and (4, 8)

(−12, −12) and (3, 0)

(−4, 0) and (4, 8)

(−4, 0) and (3, 0)

is there a question here?

step-by-step explanation:

well if he bought them at 5 cedis each sold them at 7 cedis each then he would make a profit of 2 cedis of each book. if in total he made 150 cedis profit that means he sold 75 books. he lost 12 books at the start so that means he originally bought a total of 82 books.

step-by-step explanation:

this is a good question! i’ll do some research and what i find, i’ll contact you asap when i have something! ✊

5/12

step-by-step explanation:

give them both a common denominator so you get 9/12 and 4/12. subtract 9/12 from 4/12 to get 5/12.