2.0 × 10^7
2.6 × 10^9 = 26,000,000,000
1.3 × 10^2 = 130
26,000,000,000 ÷ 130 = 20,000,000
Answer:
by adding the circle of area below the doorknob and removing the surface area of the knob itself
Step-by-step explanation:
48/3