Brett has been studying a type of bacteria that doubles every month. originally, there were 5 bacterial cells. he wants to know how many there will be after 42 months. which equation should he use?
a a42 = 5(2)42 - 1
b a42 = 5(2)(42)
c a42 = 5(2)42
d a42 = 5(2)(42 - 1)

Aperson with age is more likely to catch diseases that healthy people usually don’t catch.what are these infections called?

What if the yeast were extremely active and produced more than 100ml gas. would you know? why/why not

Which pair of sentences is describing the same velocity? a. a car is parked. a car is moving in circles. b. a bus drives 40 miles per hour north. a truck drives 50 miles per hour north. c. a boy walks east at 6 kilometers per hour. a girl walks west at the same speed as the boy. d. valerie rides her bike south at 8 kilometers per hour. owen jogs south at 8 kilometers per hour.