Question

i needed to edit this

Answer 1

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

Answer 2

Do you get it?

Answer 3

are you a girl

Answer 4

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

Answer 5

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

Answer 6

okay

Answer 7

u want easy explantaion

Answer 8

ok u want the easy or the hard

Answer 9

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

Answer 10

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

Answer 11

I guess so

Answer 12

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

Answer 13

I figured out the answer now, thanks

Answer 14

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

Answer 15

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