exam Maths Puzzle Numerical Ability

Find the sum of the first thirty terms of the following arithmetic series:
16+25+34+43...

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exam Other Question

For the function, y=1/x-2
a) give the y values for x=-1,0,1,2,3,4
b)using points, draw a curve (graph) 26) Business and finance. Ms. Jordan has been given a loan of $2500 for 1 year. If the interest charged is $275, what is the interest rate on the loan?