A magazine has 120 pages. There are 28 full-page ads and 12 half-page ads. The rest of the magazine consists of articles.

Enter an equation that can be used to find the number of pages of articles in the magazine.

Use a as your variable.
A magazine has 120 pages. There are 28 full-page ads and 12 half-page ads. The rest of the magazine consists of articles.

Enter an equation that can be used to find the number of pages of articles in the magazine.

Use a as your variable.

For this case we propose the following variables:

x: Let the variable that represents the full-page ads

y: Let the variable that represents the half-page ads

a: Let the variable that represents the number of articles

If the magazine consists of 120 pages in total we have:

According to the statement we have:

We clear the value of the variable a:

Thus, 80 pages of the magazine are articles.

$3720

step-by-step explanation:

taxable income = $31000

as per the 2018-2019 us tax bracket, the tax rate is 12% for an individual whose taxable income is between $9,526 to $38,700.

so, the tax to be paid by him = 12% of 31000

= 0.12 * 31000     [12% converted to decimal as 0.12]

= $3720