Answer:
50
Step-by-step explanation:
2000/40=50
The train travels 50 miles per hour
You can solve this by dividing 2,000 by 40.
9514 1404 393
d(32) = 28.80
the price Marcus pays on an item with an original price of 32
d(32) = 32 -0.1(32)
d(32) = 28.8
The problem statement tells you d(32) is the price Marcus pays when the original price is 32.
13
