Answer:
3.75 is a decimal and 375/100 or 375% is the percentage for 15/4.
Step-by-step explanation:
It's 0.375 because I converted it to a decimal and anything divided by 1 is itself
28 miles
increasing by 40% = original + increase = 100 + 40 = 140% = 1.4
multiplying 20 by 1.4 gives total he will run
miles run = 1.4 × 20 = 28
