I need help pls

This is a greatest common factor problem.

What is the greatest common factor of 18 and 30?

18 is 1 x 18: 2 x 9; 3 x 6

30 is 1 x 30: 2 x 15: 3 x 10; 5 x 6

Our greatest common factor is 6.

How many 6 inch boards can you cut from 18 and 30 inches.

18/6 = 3

30/6 = 5

Or, when you find the GCF, it's multiple is the number of boards at that length that can be cut.

-4

step-by-step explanation:

(-4+8)=-(4-8)=-8+4=-4

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for