2 If the S. S. of the two equations : X + 2 y = 5 and 2 X + k y = 3 in R XR equals Ø , then k=
(a) 2
(b) - 2
(d) -4
(c) 4

What is the simplified expression for 6(2(y+x))

Guests at an amusement park must be at least 54 inches tall to be able to ride the roller coaster. which graph represents the set of heights that satisfy this requirement?

The length of each stair is 11 inches. what is the rise, r, for each stair? round to the nearest inch. 2 inches 7 inches 17 inches 24 inches