Joyce painted 4 window frames in 5 hours while earning money for college. what was her painting rate in window frames per hour?

4/5 frames/h

Step-by-step explanation:

Find the ratio frames per hour by dividing frames by hours:

(4 frames)/(5 hours) = (4/5) frames/hour

step-by-step explanation:

there is a formula i can give you:

it is r^2*n*sin(360/n) divided by 2 where r represents the "radius" and n is the number of sides.

plug them in:

(10sqrt(3))^2*6*sin(360/6) divided by 2

100*3*6*sin(60) divided by 2

900*sin(60)

900*sqrt(3)/2

450*sqrt(3)

approx is 779.4 cm^2