Question

using the table of equalities, calculate the number of cups in 1.0 gallons (gal). remember to select an answer with the correct number of significant figures.
some common equalities

quantity	metric (si)	u.s.	metric - u.s.
volume	1 l = 1000 ml; 1 dl = 100 ml; 1 ml = 1 cm³	1 qt = 4 cups; 1 qt = 2 pt; 1 gal = 4 qt	946 ml = 1 qt; 1 l = 1.06 qt
mass	1 kg = 1000 g; 1 g = 1000 mg	1 lb = 16 oz	1 kg = 2.20 lb; 454 g = 1 lb
time	1 h = 60 min; 1 min = 60 s	1 h = 60 min; 1 min = 60 s

16 cups
12 cups
64 cups
8.0 cups
i dont know yet

Explanation:

Step1: Identify conversion factor

From the table, 1 gal = 4 qt and 1 qt = 4 cups.

Step2: Calculate cups in 1.0 gal

We know that 1 gal = 4 qt and 1 qt = 4 cups. So for 1.0 gal, the number of cups is $1.0\ gal\times4\ \frac{qt}{gal}\times4\ \frac{cups}{qt}=16\ cups$.

Answer:

16 cups