Answer:
The first and 3rd answer
Step-by-step explanation:
6 table runners
8.7 ÷ 1.45 = 6
l = 7.5 * 10^-6
3l = 3* (7.5* 10^-6)
= 22.5 * 10^-6
000022.5 * 10^-6
move the decimal 6 places to the left
.0000225 meters
Answer: .0000225 meters
