Help I’ll give 10 points and brainlst if you get right

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply

How many times larger is 6 × 10^12 than 2 × 10^7? a. 30,000 b. 3,000 c. 3,000,000 d. 300,000

Awindow has the shape of a rectangle with a semi circle at the top. find the approximate area of the window using the dimensions shown. 4ft by 8ft