Answer:
The difference between 19 and 8 is 11.
Step-by-step explanation:
Given:
The difference between a number and 8 is 11
Find the number.
Solution:
Let the unknown number be 
The difference between the unknown number can be written as:

We are given that the difference =11
So we can write the equation to find
as :

Using additive property to solve for 
Adding 8 to both sides to isolate
on one side.

∴ 
∴ The unknown number = 19
Answer:
the measure of the exterior angle is 87 degrees.
Answer:
A
Step-by-step explanation:
A have a positive line going up.
divide the total cost by the number of hinges:
Mark's hardware: $28 / 8 = $3.50 per hinge
Steve's Supply: $39 / 11 = $3.45 per hinge.
$3.45 is less than $3.50, so the answer would be C.
Answer:
193
Step-by-step explanation: