For the following geometric sequence, find the explicit formula. {1, - 3, 9, ... } an = - 3 · an - 1 where a1 = 1 an = - 3 · an - 1 where a1 = - 1 an = - 1 · (-3) n - 1 an = (-3) n - 1

A 9-cut cheese pizza is 1,800 calories. How many calories in 2 slices?

At a banquet the ratio of the number of boys to the number of girls is 5 to 3 halfway through the banquet 20 boys leave in the ratio becomes 5:4. how many girls are at the banquet

Bronson is ordering pizza at a restaurant, and the server tells him that he can have up to three toppings: spinach, bacon, and pepperoni. Since he cannot decide how many of the toppings he wants, he tells the server to surprise him.

The length of a rectangle is 8 feet longer than the width. If the perimeter is 80 feet, find the length and width of the rectangle

A $50 computer program is on sale for $37.50. What is the percent decrease? A. 10% B. 15% C. 20% D. 25%

If the radius of a flying disc is 7.6 centimeters, what is the approximate area of the disc? 23.864 square centimeters

Suppose you select 2 letters at random from the word compute without replacement. Find each probability. P (2 vowels)

5a - 2 (a + 2) simplify the expresion

A gourmet pizza café sells three pizzas three sides of pizza if you buy three sizes it cost 46.24 A medium pizza cost $15.75 and a large pizza cost $17.50 how much does the small pizza cost

William is putting up signs on the edge of the road every 1/16 of a mile. He just put a sign down and he has 7/8 of a mile of road left in which to place his signs. He wants to determine how many more signs he should put on the edge of the road.