The graph of which function has a y-intercept of 3

Solve the word problem. the table shows the low outside temperatures for monday, tuesday, and wednesday. by how many degrees did the low temperature increase from monday to tuesday? this function table shows the outside temperature for a given a. 21.1⁰ b. 8.6⁰ c. 4.9⁰ d. 3.9⁰(the picture is the graph the the question is talking about.)

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

Jim had 15 minutes to do 5 laps around his school what would his time be