Answer:
7.8-9.3n
Step-by-step explanation:
2.8-5.3n - 4n + 5
Combine like terms
2.8 +5 -5.3n -4n
7.8-9.3n
30% percent is what they marked up
Answer:
36 pi
Step-by-step explanation:
solve for the circumference that will be the total area of the circle
Answer:
He answered 20 questions correctly.
Step-by-step explanation:
25×.8(80%) = 20.