Pls answer this fast

Size 9

Step-by-step explanation:

The range is the highest value - the lowest value.

If the range is three, therefore the highest value - lowest value is 3

If 2 people in the family wear size 6, we can count that as 1 value. Since the question says that his shoe size can't be 3, so we let x be the number with the higher value.

x - 6 = 3

x = 9

Therefore Lee's shoe size is 9

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10