Answer:

Step-by-step explanation:
Given


Required
Determine the discount
The discount is calculated by multiplying the price off by the original price:


Convert % to decimal


<em>Hence, the amount of discount is $19.98</em>
Answer:
25
Step-by-step explanation:
16/.64=25
Answer: For me it is the answer is the a I do not know if my answer will help you
Answer: The answer is B $3.36 per gallon
Step-by-step explanation:
Answer:
84ways
Step-by-step explanation:
This is a problem on combination. Combination has to do with selection. For example if r objects are to be selected from a pool of n objects, this can be done in nCr ways.
nCr = n!/(n-r)!r!
9C3= 9!/(9-3)!3!
9C3= 9!/(6)!3*2*1
9C3= 9*8*7*6!/(6)!6
9C3= 9*8*7*/6
9C3= 9*8*7*/6
9C3= 504/6
9C3= 84ways