What is the vertex of the function 7x^2 -28x-60?

a. (2,-88)
b. (3,56)
c. (2,88)
d. (3,-56)

Adifferent website gives the cost for the first train as £56.88 and the second train as £20.11 with a £9.50 charge for cycle storage for the whole trip. how much would the journey cost you?

On a piece of paper graph f(x)=5•(0.4)^x

Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.