7
Step-by-step explanation: 7-6 = 1
-5-(-3)=-8
Answer:
30.31%
Step-by-step explanation:
Mark up on selling price is given by markup*100%/selling price
In this case, markup is given as $870 while the selling price is $2870 hence the percentage of narkup to selling price will be given by 
Therefore, the percentage of markup to selling price is approximately 30.31%
Answer:
a big number
Step-by-step explanation:
I'm not sure what operation you're using but for example, subtraction and addition are inverse operations and division and multiplication are inverse operations