LCD is math stands for Lowest Common Denominator.<span />
I think its B Because u have the total of pencils and how much they cost now u need to how know many pins you have to know how many they have in total
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 :)
The formula or the area of a trapezoid is (a+b) divided by 2 times height so the answer is 128ft2