Stuck on This math problem for a while​

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 statements regarding efg are true? check all that apply.

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76