Solve for x. Round to the nearest hundredth

Solve the system of equations. y= 2x y= x^2 - 15

Acar travels at an average speed of 52 miles per hour. how long does it take to travel 299 miles

Read the situations in the table below. then drag a graph and equation to represent each situation. indicate whether each of the relationships is proportional or non-proportional. edit : i got the right answer its attached