Answer:
Part A: this equation can only have 1 solution.
Part B:
3(2x - 7) = 3
⇔ 6x - 21 = 3
⇔ 6x = 3 + 21
⇔ 6x = 24
⇔ x = 24/6 = 4
Exact Form: 106/5
Decimal Form: 21.2
Mixed Number Form: 21 1/5
1600 because you have to times 120 by 80 and that gives you %80 of 120
You are absolutely correct! Great job