Answer:
$84 was the original bill.
Step-by-step explanation:
12 x 7 = 84
1st day: 7 bushes. Every next day Omar was clearing 3 more than he did day before.
2nd day:10 bushes
3rd day:3 more bushes than 2nd day so 6 more bushes. 10+6=16 bushes
4th day: 3 more bushes than 3rd day so 9 more bushes. 16+9=25 bushes
5th day: 9+3=12. 25+12=37 bushes.
6th day: 12+3=15. 37+15=52 bushes.
7th day: 15+3=18. 52+18=70 bushes
8th day: 18+3=21. 70+21=91 bushes cleared till 8th day.
9th day: 21+3=24. 91+24=115 bushes.
10th day: 24+3=27. 115+27=142
Omar needed 10 days to clear 140 bushes.
45 000 ÷ 8
5 625
5 625 x 5
28 125 seats used
45 000 - 28 125
16 875 seats available
To evaluate these you would multiply the two fractions together.
For example:
5*24
____
8*1
By my calculations it should be six