Find all the local maxima, local minima, and saddle points of the function

What is the 12th term of b(n)=-4-2(n-1)

Suppose that sahil knows that 45 people with ages of 18 to 29 voted. without using a calculator, he quickly says then 135 people with ages of 30to 49 voted. is he correct? how might sohil have come up with his answer so quickly?

Which of the following represents the factorization of the trinomial below? x^2+7x-30