31.5 hours for $135

Annalise charges about 4.29 per hour.
1/4 is equal to 2/8.
2/8+1/8=3/8
Carla used 3/8 of the ribbon in all. So, 5/8 of the ribbon is left.
I hope this helps :)
Because the 18-gon is symmetrical, you can rotate it by 360/18 or 20 degrees. This is because when you rotate it by 20 degrees(to the left for explanation matters), any angle will now be in the position of its angle to its left.
Answer:
Step-by-step explanation:
False
Answer:
Step-by-step explanation:
force=mass × acceleration
20=5×a
a=20/5=4 m/s²