What is the answer for (a^2+12c)÷7b-1

Which is a reasonable estimate of the amount of water in a small, inflatable pool used by children?

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

If f(x) =3x-2 and g(x) =2x+1 fins (f+ g) (x)