If 21 is added to a number the result is 40 less than twice the number what is the number?

11. For a math homework assignment, Karla found the area and perimeter of a room of her house. She reported that the area of her rectangular living room is 180 square feet and that the perimeter is 54 feet.

What is the sum of the solutions to (x + 0.5) (x - 9) = 0?

The numbers aboves the fractions bar is the blank

Review of Significant Figures: How many significant figures does the result of the following calculation have: 24.78 * (37.3-31.72) ?

A golden rectangle is 32cm long. The ratio of length to width is (1 + square root of 5) : 2. What is the width of the rectangle in simplest radical form?

If the height of this box was 10in, how man 2in cubes could fit inside this box?

Ac equals 5in cb equals 3in. what does ab equal to

You sold $105 worth of tickets, but you spilled soda on the record sheet and don't know how many of each tickets you sold. students tickets cost $5 and adult tickets cost $7 each. use x for student tickets and y for adult tickets

Which polynomial is prime? 7x2 - 35x + 2x - 10 9x3 + 11x2 + 3x - 33 10x3 - 15x2 + 8x - 12 12x4 + 42x2 + 4x2 + 14

You are ordering T-shirts with your school's mascot printed on them. Each T-shirt costs $4.75. The printer chargers a setup fee of $30 and $2.40 to print each shirt. Write two expressions to represent the total cost of printing n T-shirts.