Find each difference. a. 9−4

b. 4−9

c. 9−(-4)

d. -9−(-4)

e. -9−4

f. 4−(-9)

g. -4−(-9)

h. -4−9

The answers are:

a. 5

b. -5

c. 13

d. -5

e. -13

f. 13

g. 5

h. -13

Hope this helps!

On monday,mrs.wise bought 3 lbs of apples at $4per lb= 4*3=$12on tuesday ,20%off and she buy 5 lbs of apples = $4-20%=3.20*5lb=$16example: other wise when she buy 5lbs on monday she have to spend 4*5=20