This should be the correct solution
x + 4 = -8
x + 4 + (-4) = -8 + (-4)
x + 0 = -12
x = -12
<span>C. The student added improperly and got the wrong answer in step 3.
</span>
The student failed to consider the negative signs of 8 and 4.
Well, the average of a sum of number is found by adding each given number and dividing that number by the amount of given numbers.
Example: 5+4+3+8=20
and 20/4 = 5, the average of the numbers
Multiply 1.8 by 8.0 using this format:
1.8
x8.0
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Hope this helped
(Y+22) + 3 = Y + 22 + 3 = Y + 25
Y=2(2)^x.
Hope its a correct answer
