How to convert 3.8 repeating until it's simplest form

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.)

The value √10 and √15 are plotted on the number line

Nikolas calculated the volume of the prism. his work is shown below.