The value of a collectible coin can be represented by the equation y=2x+15, where x represents its age in years and y represents its total value in dollars. what is the value of the coin after 19 years?
$2
$23
$38
$53

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.)

What is the value of x in the diagram below?

What is the standard form of -5x^2+2x^4-11+x^3+3x