Check all that apply. (N/3)
is the reference angle for:

A.
2n/3
B.
19n/3
C.
7n/3
D.
15n/3

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.

What is the perimeter of a rectangular building that is 80 feet wide and 140 feet deep?

Can someone factor this fully? my friend and i have two different answers and i would like to know if either of them is right. you in advance. a^2 - b^2 + 25 + 10a