Is the circumference of a circle always half of its area?

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?

Jane’s favorite fruit punch consists of pear, pineapple, and plum juices in the ratio 5: 2: 3. how many cups of pear juice should she use to make 20 cups of punch?

Which point-slope form equation represents a line that passes through (3,-2) with a slope of -4/5