A sample of bacteria was placed in a petri dish. The number of bacteria changes exponentially over time.

The graph describes the number of bacteria over time (in hours).

How does the number of bacteria change over time?

Answer is B

A cube has side length aa. The side lengths are decreased to 20% of their original size. Write an expression in simplest form for the volume of the new cube in terms of aa.

8 increased by three times a number

10 times as many as 6 hundreds is 60 hundreds

If oranges cost $0.75 for 1/5 of a dozen, how many oranges can you buy for $3.00

In the 1970s, due to world events, there was a gasoline shortage in the United States. There were often long lines of cars waiting at gas stations.

The sum of a block of land's length and width is 30m. If x = the width the expression for the land's length is 30 - x. Given the length and width must be positive values, solve an appropriate inequality to find the possible values of x.

Jacqueline wants to travel to Oregon. She rents a car for $50, plus $0.10 per miles. Jacqueline paid a total of $195. How many miles did she drive?

25 1/2 divided by 6 In this math equation I don't know how to do it

What is three and one-eights minus one and seven-eights?

Solve 5x-4=5 (x-3) + 11