At the fair, Kate found a strange machine with a sign on it labeled, enter a number. When she pushed the number 15, the machine displayed 17. Perplexed she tried 100, and the machine displayed 94. What is the machine doing?

Six rectangles each with a common base width of 22 have lengths of 1,4,9,16,251,4,9,16,25, and 3636. What is the sum of the areas of the six rectangles?

What property explains 6+0

Two groups of students order burritos and tacos at a local restaurant. One order of 3 burritos and 4 tacos costs $11.33. the other order of 9 burritos and 5 tacos costs $23.56 ... a. Write a system of equations that describes the situation. b.

A=20 find the volume round to the nearest 10th

What is the quotient of7^-1 / 7^-2

In triangle abc, ab=90 in, bc=80 in, and angle b measures 50°. what is the approximate perimeter of the triangle? a) 242.4 in. b) 265.3 in. c) 308.3 in. d) 324.1 in.

The sum of two numbers is 180. one number is 5 times the number

What is the vertex of the parobala y = (x-5) (x-1)

7.25 (x + 1.5 · 10)

Simplify: (2x^-2/y^3) ^-4