Can someone please help I need the answers please

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.

Evaluate the expression for the given value of the variable 7a - 4a for a =8

What is the 9th term in the geometric sequence described by this explicit formula? an=-6. (2)(n-1) apex