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?

Definition of a solid shape

Simplify - 15.5/5. A - 3.1 B 3.1 C - 3.3 D 3.3

Find one pair of real numbers, $ (x, y),$ such that $x + y = 6$ and $x^3 + y^3 = 144.$

Taxes reduce your paycheck by 22% each month. In an Excel spreadsheet, the salary earned for a month stored in cell A35. Write an Excel formula that would calculate the dollar amount of taxes. a. =A35*1.22 b. =A35/0.22 c. =A35*0.22 d. =0.22/A35 e.

A number decreased by 25

49.005 -7.157 show how you would work it out. Having trouble trying to explain it to my daughter with this common core math.

Round the number 2,787 to the nearest hundred

During a bike challenge writers have to collect various colored ribbons each 1/2 mile they collect the rent with each 1/8 mile they click the green ribbon and each 1/4 mile they collect the blue ribbon which colors of ribbon will be collected at the

If you are one of the first 100 people to join a new health club, you are charged a joining fee of $49. Otherwise, you are charged a joining fee of $149. The monthly membership cost is $38.75. a.

Simplify the expression by combining like terms. 15+12-5+4-7