a. 5, 10, 15, . . .b. 10, 7, 4, . . .
c. 100, 85, 70, . . .
d. 2, 10, 18, . . .
2. Find the sum of each of the following series-
a. 3, 7, 11, . . . to 16 terms
b. 1, 6, 11, . . . to 10 terms
c. 100, 85, 70, . . . to 20 terms
d. 2, 10, 18, . . . to 11 terms
3. Find each of the following,
4. Find the sum where a = - 4, n = 14, d = 3
5. Write the following in expanded form and then evaluate the sum. ***REMEMBER**
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