Answer:
$7724
Step-by-step explanation:
Her estimated quarterly income is $73,040/4 = $18,260.
Her estimated tax rate is ...
27% + 12.4% + 2.9% = 42.3%
This tax rate applied to her estimated earnings gives an estimated quarterly tax of ...
$18,260 × 0.423 = $7723.98
≈ $7724 . . . . . taxes are rounded to the nearest dollar
Here we are given the equation 3x+k =c
Here in order to solve for x , first let us bring k to the right side.
k is in addition on the left , so when we bring it to the right it gets subtracted

now we have to isolate x on the left side , 3 is in multiplication with x , so when we bring it to the right side we divide by 3
Answer: 
10^4 = 10,000
9 x 10,000 = 90,000
6^3x+2=216
The steps on solving this problem is first write MDAS which means mutliplication is first so first you multiply 6^3x+2 after your done you get 18^x+2=216
and thats how you do it. (I hope that help cause I showed my teacher this question she kinda helped me with it..)