7x300=7x 3 hundres because in 300 hundreds there is 3 hundreds.I know that didnt make sense.so basically just look at the front number number its 3 so 3 hundreds but if your working with thousands and the front number is 5 its 5 thousands.I hope this was helpful.
Depending on how big the center is, I would say 15.
I hope this helped!
B) 64, because all these numbers have a difference of 14, and it you keep going, the 10th term will be 64.
Slope= Mx in y=Mx+b jrbdhendj
