Which of the following functions best describes this graph?

What is the measure of angle afe? 79 81 91 99

What is the sum of these mixed numbers 2 1/8 + 4 3/8

For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is