Somebody help I don't understand this stuff.

16. you're planning to buy a boat, a motor, and some miscellaneous boating equipment. the boat costs $325, the motor costs $225, and the equipment costs $79. if you've saved $438 toward these purchases, how much more do you need to save? a. $181 b. $281 c. $291 d. $191

The coordinates of one point of a line segment ate (-2,-7). the line segment is 12 units long. give three possible coordinates of the line segment’s other end point.

In his stamp album ,jamal has 48 new stamps and 72 used stamps. which ratio can be represented by 3/5