How do I use the method of taking sqrts for 6-9x^2=-750

The following data represent the flight time (in minutes) of a random sample of seven flights from one city to another city. 282 , 268 , 258 , 264 , 255 , 261 , 267 Compute the range and sample standard deviation of flight time.

How do you explain expanded notation method for 82 times 3

Used paperback books are$0.25, and hardback books are $0.50. if you buy 3 paperback books and 5 hardback books how much money do you spend?

The circumference of the circle-shaped rug is 56.52 inches. What is the area of the rug?

Compare how u would model and record finding the sum and difference of two rocks weighing 2/8 pound and 3/8 pound.

In two years the value of a car chnaged from 14,000 to 11,200 what is the percent of change

What is the difference 4 1/3 - (-2/3)

Elaine is painting a fence. she knows that she needs 1 gallon of paint for each 10 feet of fencing. The fencing will enclose a rectangular yard that is 3 yards long and 2 yards wide. how much paint does Elaine need?

What is the square root of 2/9?

What is 75% of 200?