"mo's farm stand sold a total of 165 pounds of apples and peachs. she sold apples for $1.75 per pound and peachs for a $2.50 per pound. if she made $337.50, how many pounds of apples and peachs did she sell? "

"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.

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

Is this a polynomial function? i need to know asap