the units digit of a two digit number is 10. If the digits are reversed, the new number is 9 less than the original number. find the original number

What are the dimensions of the vertical cross section of the right rectangular prism? Note that the figure is not drawn to scale. A plane passes through a right rectangular prism. The plane is parallel to the left and right faces of the prism.

Ron estimates that it will cost $400,000 to send his daughter to a private college in 18 years. He currently has $90,000 to deposit in an account.

A school is building a basketball court for its students. The length of the court is 31 1/8 feet. The width of the court is 25 1/2 feet. What is the perimeter of the basketball court?

Derive the equation of the parabola with a focus at (-7, 5) and a directrix of y = - 11. f (x) = one thirty second (x + 7) 2 - 3 f (x) = - one thirty second (x + 7) 2 - 3 f (x) = - one thirty second (x - 7) 2 - 3 f (x) =

A pencil is 66 inches long. A piece of rope is 1212 feet long. Which diagram and statement best represent their length

It takes three hours for a boat to go 18 miles downstream, and nine hours to return. What is the rate of the boat in calm water and the rate of the current?

A bag contains purple marbles and yellow marbles, 86 in total. The number of purple marbles is 2 more than 5 times the number of yellow marbles. How many purple marbles are there?

Kathleen had a bag of candy-coated chocolates. Of the 60 candies in the bag, 20% were red, 30% were orange, 30% were green, and 20% were blue. Of the blue ones, 10% had a damaged candy coating.

On a baseball diamond, 1st base, 2nd base, 3rd base, and home plate form a square. If the ball is thrown from 1st base to 2nd base and then from 2nd base to home plate, how many feet has the ball been thrown?

Lewis paid $13.55 for a beach chair and $5.75 for a book. How much did Lewis spend? $7.80 $18.20 $19.20 $19.30