HELP ASAP! I’m very confused and need help. Thank you!

You are making a battery for a science project. you have copper wire for your first electrode. you need to choose a conductor, a second electrode, and a device to plug into your battery. you have already chosen a lemon conductor. complete each statement below about the options that include a lemon conductor.

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

What is the factored form of the following expressions? d^2 – 13d + 36