Asubmarine is 600 feet below sea level. it is rising to the surface at a rate of 15 feet per hour. which expression represents this scenario?

Can someone me my sister? she is in third grade. 50 points and brainlist! ones that are not answered. plz and thx!

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?

How many triangles can be drawn with side lengths 4 centimeters, 4.5 centimeters, and 9 centimeters? explain