Determine whether the fraction 4/7 and 3/5 are equivalent

"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.

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

7. the area of the playing surface at the olympic stadium in beijing isof a hectare. what area will it occupy on a plan drawn to a scaleof 1: 500?