A glider descends 240 meters in 12 seconds. What is the average change in elevation?

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?

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

Rectangle bcde is similar to rectangle vwxy. what is the length of side vy? a) 1 7 b) 2 7 c) 3 7 d) 4 7