Answer:
buying price = $15,500
Step-by-step explanation:
selling price 20% more than the buying price
let the buying price be 100% then;
selling price = 120%
120% = $18,600
100% = ?
(100 × 18600) ÷ 120
= $15,500
1)a
2)d
3)b
4)c
it will take about 6 months
<em><u>22x + 2</u></em>
7x + 4 + 12x + 4 + 3x - 6
(*rearrange*)
7x + 12x + 3x + 4 + 4 - 6
= 22x + 2