Answer:
Step-by-step explanation:
a. the ratio is 12:6 so you'd divide 100 by 2 which equals 50 for Alexa
100+50=150 altogether.
b. the ratio is 10:15 which simplifies to 2:3 and also equals 100:50
Peter ran 100 and Jared ran 50
c. ratio is 120:180
That simplifies to 12:18 or 4:6
Sorry I didn't get the problems at the bottom
