What is 509,000 in scientific notation?

Brian is twice as old as Charlie. Three years from now, the sum of their ages will be 33. How old are Brian and Charlie today?

Phillip has $2,000 and spends $23.75 on supplies. He divides the remaining amount equally among his employees. How much does each employees receive

White whales can weigh up to 120,000 pounds. How many tons is this? a. 6 b. 60 c. 600 d. 6,000 (with explanation)

Elizabeth has a 15% discount coupon for a furniture store. She sees a new couch that she wants to buy. After the 15% discount was applied, Elizabeth paid $2,210 for the couch. What was the original price of the couch?

A bag contains 30 red tiles 15 green tiles and 5 yellow tiles one tile is drawn and then replaced then a second tile is drawn what is the probability that the first tile is yellow and tbe second tile green

Solve the inequality 4 (x+1) < 2x+3 Show steps

How many solutions does the equation 5x + 10 = 5x - 8 have?

Stan is on a bike ride. His GPS indicates that he has traveled exactly 18 miles and he is 32% complete with his total ride. How many miles long is Stan's ride?

What is the inverse of f (x) = The quantity of three x plus five, over seven.?

The diameter of a sphere is 2 ft. What is the sphere's volume? Round to the nearest tenth.