The axis of symmetry for a certin parabola is x=-3

The vertex is (?,5) find the value of ?.

If you flip a coin 3 times, what is the probability of flipping heads 3 times? a. p(3 heads) = 3/8 b. p(3 heads) = 1/6 c. p(3 heads) = 1/8 d. p(3 heads) = 1/2

What three-dimensional solid have 6 rectangular faces, 2 equal bases that are not rectangles and 18 edges

How is this equation completed? i cannot find any examples in the book.