To determine his final grade, Jeff’s teacher multiplies each score by its weight, adds the products together, and then divides the sum by 10. What is Jeff’s final grade

"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.

How many terms does the polynomial x^2 y^2 have

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle