Answer:
a
Step-by-step explanation:
The equation of a proportional relationship is
y = kx ← k is the constant of proportionality
Divide both sides by x
= k
To find k use any ordered pair from the table
Using (2,
) , then
k =
= 2 ×
= 
Answer:
80
Step-by-step explanation:
5 × 4 = 20
20 × 4 = 80
80 × 4 = 320
320 × 4 = 1280
9.82-9.71=.11
.11x100 divided by 9.82 = 1.12%