Cora cooks on a range that has four round electric burners. One of the burners has a diameter of 18 centimeters. What is the burner's area? Use 3.14 for .

Abbey purchased a house using a fixed rate mortgage. the annual interest rate is 4.2% compounded monthly for 20 years. the mortgage amount is $235,000. what is the monthly payment on the mortgage? this isn't a multiple choice question have to show my work

What is the number 321,000,000 in scientific notation? also what is the number? ?

You're locked out of your house. the only open window is on the second floor, 25 feet above the ground. there are bushes along the edge of the house, so you will need to place the ladder 10 feet from the house. what length ladder do you need to reach the window?