Alicia used 4 gallons of gasoline to travel 90 miles. At the same rate, how far can she travel on a full tank that holds 18 gallons?

405 miles

Step-by-step explanation:

Step 1:

4 : 90 = 18 : x   Proportion

Step 2:

4x = 1620   Multiply

Step 3:

1620 ÷ 4  Divide

405 miles

Hope This Helps :)

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.