Consider the arithmetic progression whose first term is 15 and common difference is 7

MATHEMATICS · Multi-part · AP · AP Precalculus · Exponential and Logarithmic Functions · Exponential and Logarithmic Functions

Problem

Consider the arithmetic progression whose first term is 15 and common difference is 7. Its last term is 99. (i) Determine the number of terms in the progression. (ii) Find the sum of all its terms.

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