1 1/9 x 3 5/10

Please educate me this basic knowledge because I’m so stupif

Acertain population of bacteria demonstrates exponential growth doubles in size every 4 days. how long will it take the population to triple in size?

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items

Nikolas calculated the volume of the prism. his work is shown below.