first you would do

next you would do

which would then give you answer choice a
He will receive $30,641.85 = $30,176 + $465.85 (tax excess payment)
Since his filing status is single, he'll be taxed based on the single tax rate schedule. <span>10% for <span>$1 to $9,325. </span></span><span>15% for <span>$9,326 to $37,950.
9,325 x 10% = 932.50
30,176 - 9325 = 20,851 x 15% = 3,127.65
His total tax is 3,127.65 + 932.50 = 4,060.15; Since he paid 4,526 in federal taxes, 4,526 - 4,060.15 = 465.85 will be reimbursed.
Add his taxable income and the reimbursement to get the total amount he will receive for that year.
$30,176 + $465.85 = $30,641.85</span></span>
Answer: Metal A is 3 times faster than Metal B.
Step-by-step explanation:
Since we have given that
Time taken to oxidised metal A = 
Time taken to oxidised metal B =
seconds
So, ratio of metal A to metal B would be

So, Ratio of Metal A to Metal B is 1 : 3.
Hence, Metal A is 3 times faster than Metal B.
If you would like to solve 6f + 9g = 3g + f for f, you can do this using the following steps:
<span>6f + 9g = 3g + f
</span>6f - f = 3g - 9g
5f = - 6g
f = - 6g/5
The correct result would be <span>f = - 6g/5.</span>