Find S10 and explain why it is impossible to find so for the series 2, 6, 18, ...

Find the number of terms in the series + 8 -12 +18 -
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ANSWER BOTH WITH WORK SHOWN. USE FORMULAS

sn = n/2(t1 + (n-1)d)
OR
sn t1(1-r^n)/ 1-r

Solve 2x+y=3 x+y=5 in substitution method

Simplify. 4+3/7x-2-2/7x a. 2-5/7x b. 6-1/7x c. 2+1/7x d. 6+5/7x

Katie wants to collect over 100 seashells. she already has 34 seashells in her collection. each day, she finds 12 more seashells on the beach. katie can use fractions of days to find seashells. write an inequality to determine the number of days, dd, it will take katie to collect over 100 seashells.