Carly put a rectangular sticker on her notebook the sticker is 1 inch wide and 3 inches long what area of the notebook does the sticker cover

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?

The john nash mall used 17,4000 kilowatt hours in may, with a peak load of 92 kilowatts. the demand charge is $5.95 per kilowatt, and the energy charge is $0.08 per kilowatt hour. the fuel adjustment charge is $0.017 per kilowatt hour. what is the total electricity cost for may?

Ireally don't understand this, i'm really an idiot but i want to know how to figure this out. !