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

If the measure of xyz is 81 what is the measure of yz

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.

For the feasibility region shown below find the maximum value of the function p=3x+2y