The expression 3(1.5)^t models the number of bacteria in a culture as a function of the number of hours since the cultures was created.

What does 3 represent in this expression?

A. The culture was created 3 hours ago.

B. There were initially 3 bacteria in the culture.

C. The number of bacteria is multiplied by 3 each hour.

Will give brainliest for correct answer 8. use the distance time graph to answer these questions: a. what does the graph tell us about the velocity of the car? b. what is the average velocity of the car? (show work) c. is the velocity reflected in the graph positive or negative?d. is there any point on the graph where the car is not moving? how do we know?

Solving systems by substitution answer fast

Mikael, hema and 5 friends will run an event. they will wear either a red shirt or red baseball hat during the event. they want to spend exactley $40. shirts cost $8 each and caps cost $4 each.