Answer:
110 db
Step-by-step explanation:
Get unknowns on one side and know on other side.
Divide both sides by -2
X= -7
Answer:
1 hr 38 min
Step-by-step explanation:
The start time is 7:20. The end time is 8:58.
When 1 hour passes by, the time is 8:20.
8:58 - 8:20 = 38 minutes
1 hour and 38 minutes passes by.
The yard is 60ft * 80ft = 4800ft2.
One bag covers 100ft2.
4800ft2/100ft2/bag = 48 bags