The smiths took out a 30-year mortgage. how many monthly payments will they have to make on this mortgage?

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

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

Rewrite 9 log, x2 in a form that does not use exponents. 9log, x = log, x