Let's assume that bacteria triples every 15 minutes. If a culture begins with exactly 20 bacterial cells, how many bacterial cells will be present after 1 hour?

If olu is twice as old as funmi if the sum of their ages is 60 how old is olu

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. how many hours after the truck's departure will the two meet?

In an equilateral triangle, each angle is represented by 5y+3. what is the value of y? a. 9.7 b. 10.8 c. 11.4 d. 7.2