Answer:
the coefficient is -3
Step-by-step explanation:
Answer: She bought 68 books.
Subtract 31 from 99 to find the difference! The difference tells us how many books she bought at the yard sale.
56/64 = 7/8
7/8 x 120
105.
4×4÷4+4=4
(4×4+4)÷4=5
4+4-4÷4=7