9514 1404 393
Answer:
{(0, −5), (2, 9), (−3, −26)}
Step-by-step explanation:
You only need to try the first point in each set to eliminate the wrong answers.
a: 7(-5)-5 = -40 ≠ 0
b: 7(2)-5 = 9 ≠ 7
c: 7(0)-5 = -5 . . . matches given point
d: 7(1)-5 = 2 ≠ 3
The third choice is the correct one: {(0, −5), (2, 9), (−3, −26)}.
Step-by-step explanation:
Answer:
A. 
B. 25% discount
Step-by-step explanation:
PART A:
For the shirt:
Sale price of the shirt=$18
Cost of the shirt=$24
Now, 
⇒
For the pair of shoes:
Sale price of the pair of shoes=$42
Cost of the pair of shoes=$56
Now, 
⇒
So, the equation that represents the sale price y of an item that costs x dollars is:
PART B:
y=Sale price of an item
x=Cost of the item
Discount on the item 
Percentage discount on the item
×100
%
The laptop costs more.
What the estimated written answer would look like:
The laptops cost more. The unit price per laptop is $146.33, whereas the unit price per printer is $18.13. I divided the total price by the number of items to get my unit prices.
The unit price per printer would be $18.13.
145/8 = 18.3
The unit price per laptop would be $146.33.
439/3 = 146.3
A and B are equal........
