Lin and Han’s families provide money for their school lunch accounts. Han starts with $100 in his account. He spends $15 each week on lunches. Lin starts with $25 in her account and does not spend any of it. Her family adds $10 each week to her account. At the end of 4 weeks, who has more money in their account? After how many weeks will Han and Lin have the same amount of money in their lunch accounts?

Match the following terms with their definitions. 1. bisector of a segment ray ba and ray bc are opposite rays if a, b, and c are collinear and b (the endpoint of both rays) is between a and c. 2. opposite rays a ray, , is the set of points beginning at point a and going infinitely in the direction of point b. 3. collinear points a line or segment that intersects the segment at its midpoint. 4. betweenness of points a set of two or more points all on the same line. 5. ray the distance between the endpoints of a segment. 6. space point b is between a and c if a, b, and c are collinear and the equation ab + bc = ac is true, where ab, bc, and ac are the distances between points a and b, b and c, and a and c, respectively. 7. midpoint of a segment a set of two or more points all on the same plane. 8. coplanar points the point on a segment that divides the segment into two equal segments. 9. length of a segment the set of all possible points. 10. line segment the set of two different endpoints and all points between them.

What is the value of r of the geometric series?

Is it true that product of 3 consecutive natural numbers is always divisible by 6? justifyyour answer