Answer:
B. $79 + 0.1($79)
Step-by-step explanation:
Given that;
the shipping cost for an order = 1/10 multiply by the cost of the items bought;
i.e. 
where
x = cost of items ordered for.
This implies that:
x + 0.1x
The objective is to determine the expression for the total cost of an order which is $79
x = 79
Then, the total cost of an order is
$79 + 0.1($79)
Answer:
Ratio of perimeters = 7 : 9
Step-by-step explanation:
Each side of the smaller triangle is 7 by 9 times the length of the corresponding side of the large triangle.
I need to see the picture I don’t know which polynomials
Answer: 2-(2x+40) or (2x+40)-2
Step-by-step explanation: If you wanted to solve the problem, you have to do the stuff in the parentheses before you do the stuff out of the parentheses. In the parentheses, you will have to solve 2x before you do anything else. When you solve 2x, the answer to that, add it to 40. Then the answer in the parentheses, subtract it by 2 and you can get the answer.
Use the complex conjugate of (-7 + i) to remove the complex number from the denominator and then simplify.
See attached.
