A laptop has a listed price of $891.99 before tax. If the sales tax rate is 9.25%, find the total cost of the laptop with sales tax included.
Round your answer to the nearest cent, as necessary.
Please explain to me.

$974.50

Step-by-step explanation:

The sales tax is 0.0925($891.99), or $82.51.  We need only add this amount to the listed price ($891.99) to find the total cost with sales tax included:

$891.99

+    82.51

$974.50

An alternative approach would be to multiply the listed price by 1.0925:

1.0925($891.99) = $974.50

Here the '1' refers to the listed price and the '0.0925' to the sales tax.

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation: