see the attachments below for the steps :)
The simplified expression is as follows:
d(-3x^2 + 9x - 14)
F(x) = -5x^2 - x + 20;
f(3) = -5*3^2 - 3 + 20 = -5*9 - 3 + 20 = -45 - 3 + 20 = -28;
The answer is four. It's like asking to give the least common denominator
To find the amount increase in price, you will calculate what 60% of the $38 is by multiplying 0.6 and 38
0.6 x 38 = $22.80 is the amount of increase.
The retail price is found by adding the increase to the cost.
$38 + $22.80 = $60.80.