Answer:
15 dollars
Step-by-step explanation:
12 inches = 1 ft
so 12 inch by 12 inches is 1 ft * 1 ft
1 ft* 1 ft
1 ft^2
This is smaller than 3 ft^2 so they will get charged for 3 ft^2
3 ft^2 = 3 ft^2 * $5 / ft^2 = 15 dollars
(2-7i)(9+5i)
18+10i-81i-35i^2
The answer is 35i^2 - 71i +18
Answer:
ok here's what i think:
first box is 30
second box is between 20 and 70
third box is more than 70
I'm not absolutley sure and I may be wrong
