The marker costs 13 as much as the pen. The pen costs 13 as much as the book. The book costs 13 as much as the game. The price of the marker is what fraction of the price of the game?

The radius r of a circle is increasing at a rate of 3 inches per minute. Find the rate of change of the area when r = 5 inches and r = 21 inches. (a) r = 5 inches

Zohar is using scissors to cut a rectangle with a length of 5x-2 and a width of 3x+1 out of a larger piece of paper. The perimeter of rectangle is 2 (5x-2) + 2 (3x+1) if x = 4 centimeters whst is total distance

What is the product? 13. - 6 - 11 1-14 g

What is 8.05 as a fraction and percent?

Explain how to find the quotient of 3.4 : 6

3x + 2y = 8 x + 2y = 4

A firework is fired vertically into the air at a speed of 100 m/s. The expression - 5t2 + 100t + 40 gives the height of the firework after t seconds. Factor this expression.

Six friends play golf. Their scores are 87,95, 92, 88, 91, and 96. What is the mean, median, and mode of the friends' scores?

X to the 2nd + 8x + 12 equals 0

4x^2-35x+49=0 solve by factoring