Money in a bank triples every 9 years. If $100 is deposited today, what will it's value be after 36 years?

Step-by-step explanation:

We can denote this increase with the function , where is value after years.

Substituting , we get:

d

step-by-step explanation:

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.