What is the coefficient, a variable, and a constant for the expression 50+5w+20m

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

Secant be and cf intersect at point d inside a what is the measure of cde

If i had 1234 apples and 1 banana what is the total amount