Answer:
Hannah did 45 pushups today
Explanation:
Given;
Hannah does pushups in sets of 3
She did 10 sets of pushups today
if each set of pushup = 3 pushups
then, 10 sets of pushups = 30 pushups
Again, Hannah's coach asked her to do 15 more pushups today,
if she does 15 more pushups today, then her total pushups today will be calculated as;
total pushups today = 30 + 15 = 45 pushups
Therefore, Hannah did 45 pushups today