In california, state sales tax rates vary by county.  in alameda county, the sales tax rate is 8 1/2%. a t-shirt cost $12.99, and a pair of jeans cost $39.99.  rounded to the nearest cent, how much more is the tax on the jeans than the tax on the t-shirt?

The tax is 8.5%.To find the tax on an item, multiply 8.5% by the price of the item.
t-shirt:8.5% of $12.99 = 8.5% * $12.99 = 0.085 * $12.99 = $1.10The tax on the t-shirt is $1.10
pair of jeans:8.5% of $39.99 = 8.5% * $39.99 = 0.085 * $39.99 = $3.40The tax on the jeans is $3.40
The difference in the amount of tax is 
$3.40 - $1.10 = $2.30
$2.30

can i be brainliest ??

Tax = 8.5%
multiply 8.5% by the price of the item

t-shirt (tax):8.5% of $12.99 = 8.5% * $12.99 = 0.085 * $12.99 = $1.10

pair of jeans (tax):8.5% of $39.99 = 8.5% * $39.99 = 0.085 * $39.99 = $3.40

the difference in tax:$3.40 - $1.10 = $2.30

20000 as first it increases by 2500 then by 5000 so next it will increase by 10000