Mrs. Neville is baking five batches of cookies. She will need 2 1/2 cups of flour for each batch of cookies. If she begins with 20 cup bag of flour, what is the resulting change in the amount of flour in the bag

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?

Aladder that is 20ft long is leaning against the side of a building. if the angle formed between the ladder and the ground is 75 degrees how far is the bottom of the from the base of the building?

Let x = a + bi and y = c + di and z = f + gi. which statements are true?