Sara worked 1 day last week
Joan worked for 20 hours last week
And Erin worked for 10 hours last week
B^-2 / b^-3 = b^(-2-(-3) = b^1 = b
answer is d
Answer:
3600
Step-by-step explanation:
multiply all of the choices
10x15x6x4
26' wheel @ 90 rpms = 2,340 inches / min (26 x 90)
2,340 inches / min = 140,400 inches / hour (2,340 x 60)
140,400 inches / hour = 11,700 feet / hour (140,400 / 12)
11,700 feet / hour = approx. 2.216 miles / hour (11,700 / 5,280)
