How to write a improper fractions as a mix a mixed as number

The mean of seven numbers is 21. Five of the numbers are 18, 23, 21, 17, and 19. One of the remaining numbers is 3/4 of the other remaining number. Find the two unknown numbers.

A saterllite moves at a speed of about 27,000 kilometers per hour. write four numbers that could be the actual speed of the satellite

Let f (x) = 3x2 - 6x + 2. Find f (-2).

The Boyd corporation would like to donate 10 computers and 15 printers to local schools. The corporation would like to make sure that each school receives he same set of computers and printers with none left over.

In a random survey of Valevtine's Day candi bags, 50% are red, 25% are pink, and 15% are red and pink. Which is grater the conditional probability that e bag with pink also contains red or that a bag with red also contains pink?

Karen has n decks of cards. each deck has 52 cards in it. using n, write an expression for the total number of cards karen has.

What is the surface area of a cone with a lateral surface area of 25 square inches and a base diameter of 4 inches? (Use 3.14 as an approximation for π.)

Write an equation to solve this problem: Twenty-four is 25 percent of what number? Find the answer.

Can anyone simplify this equation? 8^2+9 (12:3*2) - 7

flora is 43 feet underground touring a cavern. She climbs a ladder up 14 feet. What is her new location