If the diameter of a circle changes from 6 cm to 12 cm, how will the circumference change?

Kayleigh and Rachel each buy clothes in a sale. Kayleigh's clothes normally cost £50 butterflies had £5 off. Rachel's clothes normally cost £20 but had £3 off. Whose clothes had the bigger percentage discount

The ordered pair (0, 4) is a solution of which system?

What is expected number of throws to get multiple of 6?

whats the value of the 5 in 453,193

Ashley is keeping track of the growth of a bamboo plant. When she purchased the plant last month its height was 8.75 inches. Its height today is 9.5 inches.

Jen solves the equation 100-1/2x=92 to determine the number of questions, x, she answered incorrectly on a test. She began by subtracting 100 from both sides, then multiplying both sides by - 2. Which best describes the accuracy of jen's work?

2x + y = 20 6x - 5 y = 12

What is the greatest common factor of 96 48 84

The perimeter of a rectangle is 100 yd. if its width is four times its length, what is the area?

Find the sum 45+46+47+48 ... + 127+128