Dough House Bakery makes bread, cakes, cookies, and pies. At the end of the day, the prices of all the leftover products are reduced by 75%. If bread sells for $0.87 at the end of the day, what is its regular price?

We just started the introduction into circles and i have no idea how to do this.

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?

Using pert, adam munson was able to determine that the expected project completion time for the construction of a pleasure yacht is 21 months, and the project variance is 4. a) what is the probability that the project will be completed in 17 months? b) what is the probability that the project will be completed in 20 months? c) what is the probability that the project will be completed in 23 months? d) what is the probability that the project will be completed in 25 months? e) what is the due date that yields a 95% chance of completion?