Answer:
5
Step-by-step explanation:
He can buy 5 boxes of light bulbs..
20 x 5= 100
He only has 120 to spend - the shipping = 110
He can't get another box of lightbulbs. Therefor he can only buy 5!
Rectanglearea=legnth timees width
triagnlearea=1/2base times height
ok so we find volume of entier land first
we can cut into triangle an rectangle
triangle=height=650-200=450
base=600
area=1/2*600*450=135000 ft^2
rectangle=200 times 600=120000
add
135000+120000=255000ft^2
find other areas and subtract
areahouse=45*38=1710
areawooded=118*60=7080
frontyard=78*40=3120
add
1710+7080+3120=11910
minus
255000-11910=243090
how many acres are farmed
43560ft^2=1acre
divide both sides by 43560
1ft^2=1/43560 acre
multiply both sides by 243090
243090ft^2=243090/43560acre=5.5805acre=5.6acre rounded
answer is 5.6 acer