Mean = Sigma (summation) of x ÷ n
(Making Sigma x The subject of the formula)
Summation of x = Mean × n
= 8 × 15
The summation of all the scores= 120
The change of x is 20-5 = 15
New summation = 120 - 15 = 105
Using formula:
105 ÷ 15 = 7
ų = 7
Simply find 6% of $145.50
That is 6/100 * 145.5
= 0.06 * 145.5. Use a calculator
= 8.73.
Sales tax is $8.73. C.
Answer:
Multiply
Step-by-step explanation:
You need to multiply unless you are told different. That's how I always did it and I got it right unless you need to divide or something.
You would add all of them together. Then since there is 4 round and green, you would do 4/23. The answer is .174
Hope this helped
