Answer:
First "order of operations" mistake: step 2
First arithmetic mistake: step 4
Step-by-step explanation:
As we understand Rena's work, she wants to simplify ...

for x = -1 and y = 2.
Her work seems to be ...
<u>Step 1</u>

<u>Step 2</u>

<u>Step 3</u>

<u>Step 4</u>

_____
So, the first arithmetic error is in Step 4. However, the order of operations requires exponents be evaluated first. Doing that makes step 2 look like ...

__
We expect your answer is supposed to be Step 4.
I think its the first option maybe im not sure
Answer:
n-3≥-5
If you need the equation solved...
n-3≥-5
<u>+3 +3</u>
n≥-2
Hope this helped!! Have a great day c:
Answer:
73
Step-by-step explanation:
to find the mean you need to add up all grades and divide if by the number of terms you added
(82 + 88 + x) ÷ 3 = 69 (since we don't know the third grade let's call it x)
170 + x = 69 × 3
x = 37
if the digits transposed the the actual grade would be 73
A) The formula would be C = 89x + 24.
b) To find the cost of 2 tuxes, just plug in 2 for x and you get 202.
c) For the 4098th tux, plug in 4098 for x and you get $364,746.
d) The variable cost is the number of tuxes.
The fixed cost is the $24 down. The marginal cost is $89, the amount that it changes for each tux.