What is the best way to sketch a graph of a situation

Me! last question, and i'm stuck! write the algebraic expression that models the word phrase. the product of 2 divided by the number h and 8 more than the number k

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.

Find two consexutive odd integers such that the sum of their square is 650