1)An arithmetic series has common difference - 11 and tenth term 101. a) Find the first term of the series.
b )Find the sum of the first 30 terms of the series.

2) The fifth term of a geometric series is 12 and the eighth term of the series is 96
a) Find the common ratio
b) Find the first term of the series.
c) The sum of the first 20 terms, giving your answer to the nearest whole numbe