c. the number of persons allegric to penicillin
Answer:
21
Step-by-step explanation:
1.53
Since it is 0 in the thousands place it, doesn’t change.
Answer:
20 2 chair tables and 30 4 chair tables
Step-by-step explanation:
You burn 265 calories running and then 7 calories per minute swimming.
Your friend burns 273 calories running and then 11 calories per minute swimming.
Let us assume that both of you swim for x minutes.
Calories burnt by you = 265+7x
Calories burnt by your friend = 273+11x
Difference between both = 273+11x-(265+7x)
= 273+11x-265-7x
= 8+4x
