7 x 3= 21 you can also use a calculator to help you
Answer:
5
Step-by-step explanation:
15 × 
= 5
Answer:
72
Step-by-step explanation:
36+36=72
Answer:
Jessica runs the fastest
Step-by-step explanation:
If you divide all of the lengths they ran by the time it took them to run in seconds, you find how much feet they run each second and Jessica ran the most feet in the least amount of time which means she runs the fastest.
