Tom buys a shirt for $22.00 plus 7% sales tax. His cousin buys a shirt for $18.00 plus 4% sales tax.

a. How much do Tom and his cousin pay for the shirts? Show your work.
b. Who spent more on tax? (3 points)

18.
In 2000, the circulation of a local newspaper was 3,250. In 2001, its circulation was 3,640. In 2002, the circulation was 4,100.

a. Find the percent of increase in the newspaper’s circulation from 2000 to 2001 and from 2001 to 2002.
b. Which period had a higher percent of increase, 2000 to 2001, or 2001 to 2002? (3 points)

I need help solving these problems. I need to show my work, but I don't really know the steps to solve these problems. Thanks so much.

first: pay=(1.07)*22 + (1.07)18

The more you pay, the more tax you paid.

17) .07 times 22.00 will give you the amount of tax on the shirt

That should get you going

18) difference / start

2000 to 2001. Would be (3640-3250)/3250 or 12%
That should get you going

Thanks everybody for your help! I really understand 17 now! .............Not so much 18, but thanks anyway!

a. To find the total amount paid by Tom for the shirt, we need to add the price of the shirt and the sales tax. The sales tax is calculated by multiplying the price of the shirt by the tax rate.

Tom's shirt price: $22.00
Tax rate: 7%
Sales tax: $22.00 * 7% = $1.54

Total amount paid by Tom for the shirt: $22.00 + $1.54 = $23.54

Similarly, we can calculate the total amount paid by Tom's cousin:

Cousin's shirt price: $18.00
Tax rate: 4%
Sales tax: $18.00 * 4% = $0.72

Total amount paid by Tom's cousin for the shirt: $18.00 + $0.72 = $18.72

b. To compare the amount spent on tax, we can simply compare the sales tax amounts paid by Tom and his cousin.

Tom's sales tax: $1.54
Cousin's sales tax: $0.72

Since $1.54 is greater than $0.72, it means Tom spent more on tax than his cousin.

Now let's move on to the next problem.

For 2000 to 2001:
Circulation in 2000: 3,250
Circulation in 2001: 3,640

To find the percent increase, we can use the following formula:

Percent Increase = (New Value - Old Value) / Old Value * 100

Using this formula, we can calculate the percent increase from 2000 to 2001:

Percent Increase from 2000 to 2001 = (3,640 - 3,250) / 3,250 * 100
= 390 / 3,250 * 100
= 12%

For 2001 to 2002:
Circulation in 2001: 3,640
Circulation in 2002: 4,100

Using the formula mentioned above, we can calculate the percent increase from 2001 to 2002:

Percent Increase from 2001 to 2002 = (4,100 - 3,640) / 3,640 * 100
= 460 / 3,640 * 100
= 12.64% (rounded to two decimal places)

Comparing the two percent increases, we find that the percent increase from 2001 to 2002 is higher than the percent increase from 2000 to 2001. Thus, the period from 2001 to 2002 had a higher percent increase.