Answer:
B. 7 - 9i
Step-by-step explanation:
1) Remove Parentheses.
2 - 8i + 5 - i
2) Add 2 and 5.
7 - 8i - i
3) Subtract i from -8i.
7 - 9i
The answer to your question is d
You could buy 15 bags of mulch with $105.
To find the answer, plug in 0 for x since you aren't buying any bags of sand and then you have 7y=105 and divide by 7 to find y which is 15.
The tank of gas will have a density of 35g