1. Consider the sequence: 13, 17, 21, 25, ,117
a. Is this sequence arithmetic or geometric? Justify/explain.
b. Write the explicit and recursive rules.
2.
c. Find the sum. You can do it by adding all the terms (“bone head”) or using a formula.

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.

Abarbecue sold 26 hamburgers and hot dogs. hamburgers sell for $3.50 each and hot dogs sell for $2.00 each. if the barbecue made $70 in sales, determine and state the number of hot dogs sold.

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 4x^2 - 19x- 5