Answer:
A. 3.7
Step-by-step explanation:
3900/1050 = 3.7
2640/825=3.2
There is need 4 gallons to cover 2640 sq ft.
80% of the fourth gallon can be used for other purposes after painting.
Examples of metals: copper, iron, tin,
Examples of nonmetals: hydrogen, helium, nitrogen,
