What is an efficient way to compute 47^2-37^2 without using raw calculations?

Zero is an element of the set of natural numbers true or false

Joan pays 456.25 monthly on her mortgage. If her annual insurance premium is 1,560 and her annual real estate tax is 1,890, what is her combined monthly payment to her mortgage lender? 959.35 240.51 586.25 743.75

In the past 4 years, a sporting goods store had two yearly losses of $28,000 and $42,000 and two yearly profits of $104,000 and $10,000. What was the net profit or loss over 4 years? A. -$70,000 B. $114,000 C. $44,000 D. -$44,000

A customer purchases a pair of jeans and a few shirts. Each shirt costs the same amount. The expression 60 + 20x represents the cost before tax.

The distance formula states that distance (d) is equal to the product of rate (r) and time (t). Which equation could be used to solve the problem? John ran at a constant rate of 200 mph. How many minutes did it take john to run 500 m? A. t=500/200 B.

A guy walks in the store and steals 100 without the owners knowledge. He comes back 5 minutes later and buys 70 dollars worth of goods with the 100 dollar bill. The owner gives him back 30 in change

The probability of a randomly selected car crashing during a year in a certain country is 0.04780.0478. if a family has three three? cars, find the probability that at least one of them has a car crash during a year.

1/2n-17/12=2/3n-13/6

Every day two sisters eat the same number of gluten-free rice cakes. Susanna eats 4/5 of a rice cake. Melanie eats 2/3 of a rice cake. How many rice cakes do they eat in one day?

Factor 12xsqared - 36x + 27 Completely