In ΔCDE, m∠C = (7x-15)^{\circ}(7x−15)
∘
, m∠D = (3x+6)^{\circ}(3x+6)
∘
, and m∠E = (x+2)^{\circ}(x+2)
∘
. Find m∠D.

"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.

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

Aubrey read 29 books and eli read 52 books what number is equal to the number of books aubrey read?