4x^2-9=) (2x+3) factor the difference in perfect squares by filling in the missing term

Which basic geometric term has no width, no length, and no thickness? line b. point c. angle d. plane

Find the interior angle of a regular polygon which has 6 sides

In the next 10 month, colin wants to save $900 for his vacation. he plans to save $75 each of the first 8 months. how much must he save each of the last 2 months in order to meet his goal if he saves the same amount each month ?