i needed to edit this

Question

kevin8767 · Answer

3 + 10  +17 + 24...
That is going by increments of +7.
We are given four increments, and need 18.
3 + 10 + 17 + 24 + 31 + 38 + 45 + 52... Keep adding 7 each time. Then, once you hit 18, add them all up. That'll get (B). Ur welcome

kevin8767 · Answer

Do you get it?

anonymous · Answer

are you a girl

g33k · Answer

can you explain it a little bit more for me please @kevin8767

kevin8767 · Answer

ok, start by writing what we have 
3 = 3 + 0*7

g33k · Answer

okay

kevin8767 · Answer

u want easy explantaion

anonymous · Answer

ok u want the easy or the hard

g33k · Answer

easy lol please just tell me how you got the answers @kevin8767

fortytherapper · Answer

Summation notation, so the sigma symbol, right? The style that looks like an E?

g33k · Answer

I guess so

danjs · Answer

You want the first term to be 3, and each successive term to be 7 more than the last...

g33k · Answer

I figured out the answer now, thanks

danjs · Answer

$$\large \sum_{n=1}^{18}[3+7(n-1)]$$

danjs · Answer

or you can go from n=0 to 17, and just use   3+7n