Eli spent $47.96 before tax on pizzas for his family. He bought 1 cheese pizza and the rest were pepperoni pizzas. Each pizza costs $11.99 before tax. Using equation 11.99(1 + p) = 47.96, how many pepperoni pizzas did Eli buy before taxes?

Find the exact value of each of the following. in each case, show your work and explain the steps you take to find the value. (a) sin 17π/6 (b) tan 13π/4 (c) sec 11π/3

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Andy wants to find the distance d across a river. he located points as shown in the figure, then use similar triangles to find that d = 223.5 feet. how can you tell without calculating that he must be wrong? tell what you think he did wrong and correct his error. round your answer to the nearest tenth if necessary. andy must have used the wrong . the distance d is actually feet.