They would cost $8.75. If you take out 30% from the original price, that is how much they would be.
Answer:
4mn
Step-by-step explanation:
Step 1: Multiply constants together
2 · 2 = 4
Step 2: Multiply variables together
m · n = mn
Step 3: Combine
4mn
C because C is the only answer that has r connected with 9 which is what you want
You would take the 38 and place over 100 since its in percent (part over whole) and then you'd place the n over 90 (part you are looking for over whole)
so.....the 3rd one is correct