2 times (9+7) is correct.
9 + 7 = 16.
16 multiplied by 2 is 32.
Answer: 
Step-by-step explanation:
You have the equation
.
Then, to solve for the variable
from the equation you need:
Make the subtraction of the right side of the equation:
(As the denominators are 1 and
, the least common denominator is
)

Multiply
to both sides:

Add
to both sides:

And finally divide both sides by
:

If you add the standard deviation to the average, it is 14.84. Because Marcus's score was lower than that, he will not receive a certificate.
I think this should be right for the reason and the calculation.
Answer:
0.0000805
Step-by-step explanation:

= 0.0000805
I’m assuming the 2’s are supposed to be exponents so you’re gonna to combine 7m^2 and 4m^2 to get 11m^2 so you’re answer would be
11m2+3m
You dint know the value of M so you can’t solve it, especially because there’s no equal sign with a number or expression/equation after it.