What is the difference?
-2-(-4)
A. -6
B. 2
C. -2
D. 6

Which ordered pair (c, d) is a solution to the given system of linear equations- c+2d=13 -9c-4d=-15

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9

Two friends are reading books. jimmy reads a book with 21,356 words. his friend bob reads a book with one-and-a-half times as many words. which expression represents the number of words bob reads?