This is my answer. Hope that it will help you.
Answer:
No
Step-by-step explanation:
3/4 of a yard is equal to 6/8 of a yard. If Sally wants 7 ribbons, she needs at least 7/8 yards of ribbon.
Yes because fraction wise the denominator that is the smallest is greater. At least that is what I learned
Answer:

Step-by-step explanation:

A = bh/2
2a = bh
2a/b = h
h = 2a/b