Answer:
8.8-9.1n
Step-by-step explanation:
Add 3.8+5 together to get 8.8, then add -5.1n and -4n to get -9.1n.
Answer:
The ordered pairs that are solution to this equation are:
(8,1) and (10,3)
Step-by-step explanation:
Given statement is:
"difference of two variables x and y is 7"
This can be mathematically written as:

To solve this we have to put y = 1 and y = 3
Now,
Putting y = 1 in the equation

Putting y = 3 in the equation

Ordered pairs are of the form (x,y)
Hence,
The ordered pairs that are solution to this equation are:
(8,1) and (10,3)
divide the discount by the percentage off
so:
99.90/0.27 = 370
the original price was 370 dollars