This would be A because $100 is the initial amount, and you are adding the amount that arises after (d) days. Since you are adding, it will be the sum. B says product, so you can rule it out. D says difference, so you can rule that out as well. C would be adding the days, not the amount earned each day.
Answer:
4821
Step-by-step explanation:
15x=180
x=12
hope this helps
Answer:
28 non-blue marbles.
Step-by-step explanation:
Initial probability of choosing a blue marble = 4/12
Let the number of non-blue marbles to be added be x.

(cross multiply)

Answer:
-0.146
Step-by-step explanation:
log 5 = 0.699
log 7 = 0.845