In the situation, the number of bacterias are doubling for each sheet of paper cut, thus, the exponential equation for the puber is:

Initially, there was only one sheet of paper. Then, each sheet is cut in half, so we will have 2 sheets, then 4 sheets, then 8 sheets, and so on. That is, the number of sheets is continuously doubling, thus, the population after n cuts can be modeled by the following <u>exponential equation</u>:

A similar problem is given at brainly.com/question/15563161
Answer:
umm what
Step-by-step explanation:
Answer To Question (A)
4.9 lb of zinc produce 8:5:7
Answer To Question (B)
You'll need 1.7 pounds of zinc and copper in a ratio of 2:7:9.
Hope That Helps ;)