If the supplies cost $1.50 per jar and he has a markup of 90% what price dose he sell it for ?

2.85

Step-by-step explanation:

100%->1.50

1%->0.015

190%->2.85

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.