One kind of bacteria in a laboratory culture triples in number every 30 minutes. Suppose a culture is started with 30 bacteria cells. How many bacteria will there be after 2 hours?

The tempature on Monday was - 1.5c. The tempature on tuesday was 2.6c less than the tempature on monday. What was the tempature on tuesday?

If a car travels at a rate of 74 miles per hour, then how long will it take the car to travel 481 miles

John walk 8 miles in three hours. Jim walked 14 miles in five hours. Are these rates in poor portion? If no, who walked faster?

The distance on the number line from - 10 to - 2 equals 5x - 12. What is the value of x?

Solve x^2 + 2x - 15 = 0

Sid wrote 541,309 on his paper. Using words and numbers explain how the number would change if he switched the digits in the hundred thousands and tens place

A batch of 330 samples of rejuvenated mitochondria contains 6 that are mutated (or defective). Two are selected from the batch, at random, without replacement.

What is the equation form of a pure quadratic? a. ax^2+bx=0 b. ax^2+c=0 c. ax^2+bx=c d. ax^2+c=bx

The horsepower, H (s), required for a racecar to overcome wind resistance is given by the function : H (s) = 0.003s^2+0.07s-0.027, where (s) is the speed of the car in miles per hours.

Is 20, 10, 9 a triangle