Natalia leaned a 79-foot ladder against the side of a building. The base of the ladder is 4 feet from the base of the building. The top of the
ladder is 20 feet from the top of the building. How tall, to the nearest
tenth of a foot, is the building?

Average acceleration: i have no idea how to do this.

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.

How do i multiply two digit numbers