She should use Mean. This is where you add all of the numbers, then divide it by the number of numbers. Her average score is 80.75, or rounded to 81.
Answer:
$192.50
Step-by-step explanation:
12*38.50=462
7*38.50=269.5
462-269.50=192.50
Answer:
$247.50
Step-by-step explanation:
33/100x750=247.50
Since 33% in a fraction is 33/100, use that x 750 and you will get how much the computer gets marked down.
Hope this helps! Thanks.
