Find a mathematical model for the verbal statement. (Use k for the constant of proportionality.) A varies directly as the square of r.

"you know, playing tennis is healthier than watching a tennis match on television," katya remarked to her couch potato brother. in this sentence, healthier is a/an a. superlative. b. comparative. c. positive form. d. adverb.

Select the lengths in centimeters that would form a right triangle

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?