Grades K-5 questions I can answer. (exception for 6 & 7th) You also get points by asking me a question. (Only math or Science)

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

Which number line represents the solution set for the inequality -1/2x> 24?

The width of a rectangle is 20 units. can the perimeter p of the rectangle be 64 units when its length x is 11 units? no, because p = 2x + 2(20) no, because p ≠ 2x + 2(20) yes, because p ≠ 2x + 2(20) yes, because p = 2x + 2(20)