Answer:
2.5
Step-by-step explanation:
And Pls dont do that If you dont know dont answer
Answer:
Third and forth.
Step-by-step explanation:
Marks up mean increasing the price.
Answer:
D
Step-by-step explanation:
when a number is added at the end it results in a vertical transformation
Answer:
m=5
Step-by-step explanation:
c=30m+50
c=20m+100
substitute
20m+100=30m+50
like terms
100-50=30m-20m
50=10m
m=5
X can be 4 or -4
As a minus by a minus is a positive