i'm getting so many messages notifications but it won't let me open them how many points do I have to have to open them on here

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

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.

Which are factor pairs of 350? choose all answers that are correct. a) 30 and 12 b) 35 and 10 c) 70 and 5 d) 2 and 125