7x - 2 < 10 solve for x

Which system of linear inequalities is represented by the graph?

Solve the equation for b: a= (1/2)(b)(h)

(c) a vine called the mile-a-minute weed is known for growing at a very fast rate. it can grow up to 0.5 ft per day. how fast in inches per hour can the mile-a-minute weed grow up to? show your work using the correct conversion factors.