Abicyclist travels at a constant speed of 18 miles per hour.

how long does it take the bicyclist to travel 90 miles?

f the bicyclists is traveling 18 miles every hour and needs to travel a sum of 90 miles, you need to divide 90/18 equaling the total time (in hours) needed to travel 90 miles. Hope this helps

Step-by-step explanation:

Divide 90 by 18 and that will be the time in hours

Step-by-step explanation:

256π units²   (answer b)

step-by-step explanation:

the formula for the surface area of a sphere of radius r

is             a = 4πr²

and so, if r = 8 units, then the surface area is:

a = 4π(8 units)² = 256π units²   (answer b)

goog may have it for you