Help if correct will give brinliest

Gregory draws a scale drawing of his room. the scale that he uses is 1 cm : 4 ft. on his drawing, the room is 3 centimeters long. which equation can be used to find the actual length of gregory's room?

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way

On a piece of paper graft y+2> -3x-3 then determine which answer matches the graph you drew