We add up all those numbers (excluding 30) and divide by the number of numbers (9). This results in 78.8 (round up to 79).
79-74 = 5. So the mean has increased by 5 points. (C)
Answer:
$552.90
Step-by-step explanation:
There are 52 weeks in a year
28,751/52= 552.9038462
since this is money you just round
Simply rearrange the terms and simplify.
Subtracting 4x from both sides, we have:
-11y=-4x-6
Dividing by -11, we have:

This is in the proper form, so this is our final equation.