What is the missing length?

No links please! Giving out Brainliest too. :)

State whether weight is a function of height for the six students and explain. a. yes, height is a function of weight because two students weigh 165 pounds but have different heights. b. no, height is not a function of weight because two students weigh 165 pounds but have different heights. c. yes, weight is a function of height because for each value of height there is one corresponding value of weight. d. no, weight is not a function of height because there is not enough data to determine a function.

3382-299=3383- ? fill in the blank?

Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0