Yesterday, Lin spent 6 7/8 hours doing homework. Morrie did homework for 4/5 the amount of time that Lin did. How many hours did Morrie spend dong homework? please tell me how you got the answer. thanks!

A. 6
B. 6 1/2
C. 5 1/2
D. 7

Afurniture manufacturer produces chairs and sofas. each chair requires 10 yards of fabric, and each sofa requires 20 yards of fabric. the manufacturer has 300 yards of fabric available. to fulfill orders, the number of sofas must be at least twice the number of chairs. let x be the number of chairs and y the number of sofas. which inequalities are described in the problem? check all of the boxes that apply

Jacob signs up to work for 2 1/2 hours at the school carnival. if each work shift is 3/4 hour, how many shifts will jacob work? (i just want to double check : |, for anybody that responds! : )

Ade and abc are similar. which best explains why the slope of the line between points a and d is the same as the slope between points a and b?