One type of fabric costs $31.25 for 5 square yards. Another type of fabric costs $71.50 for 11 square yards. Is the relationship between the number of square yards and the cost
proportional between the two types of fabric?

as ratio of two type of fabric is different .

hence, the relationship between the number of square yards and the cost

is not proportional between the two types of fabric

Step-by-step explanation:

For a relation to be proportional

a:b = c:d

in other form

a/b = c/d

Ratio for first type of fabric

cost of fabric/ area of fabric = 31.25/5 = 6.25

Ratio for other type of fabric

cost of fabric/ area of fabric = 71.50/11 = 6.5

as ratio of two type of fabric is different .

hence, the relationship between the number of square yards and the cost

is not proportional between the two types of fabric

i not know

step-by-step explanation:

16

step-by-step explanation:

2 x 40 = 80

80/5

= 16