Using exponents, what is the simplified form of the expression 6 to the power of 5 multiplied by 6 to the power of 2

The graph below could be the graph of which exponential function?

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

What is the measure of angle tvu shown in the diagram below