Answer:
17 square units
Step-by-step explanation:
5 × 3 = 15 un²
15 un² + 1 un² + 1 un²
17 un²
[tex]\frac{1}{2}+ \frac{1}{10} =\frac{5}{10} +\frac{1}{10} =\frac{6}{10}[/tex]
[tex]\frac{6}{10} =\frac{3}{5}[/tex]
[tex]\frac{200}{9}: \frac{420}{y}[/tex]
200 · y = 9 · 420
200y = 3780
200y ÷ 200 = 3780 ÷ 200
y = 18.9
18.9 gallons
