21 Which of the following expressions are equivalent to 18x + 12 -4? Select three that apply. A 26% B. 30x - 4 C. 18x + 8 D 2/x 4) E 2/5x12-4) F. 63x + 2) - 4​

"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.

What is the vertex form of f(x) = x2 + 6x + 3

Select the conic section that represents the equation. 3x2 + 3y2 -2x + 4 = 0