shirts are 30% off. The original price of one shirt is$20. What is the total cost, in dollars, of three shirts, at the sale price, including a 15% sales tax​

$48.30

Step-by-step explanation:

the other answer's start is correct.

30% discount of $20 is 30/100*20 = $6

so, a shirt costs now only $14.

but sales tax is always calculated from the actual sales price. not from the original list price.

so, we need to calculate 15% of $14 (and not $20) as sales tax.

=> 15/100*14 = $2.10

a shirt now costs incl. sales tax $14 + $2.10 = $16.10

three shirts cost 3 * $16.10 = $48.30

step-by-step explanation:

from the graph attached below:

domain of graph is the value of x for which the given function profit function p(x) is defined.

(a) the domain represents the number of years for which the outlet will earn a profit.

range of profit function defines the lowest to highest value of profit earned.

(b) the range of this function is (0 , 160 ). for this function, the range represents the outlet's profit earned.