I need help with this question

Asmall book publisher knows that 26 books weigh 41 lbs. how much do 40 books weigh?

Me because i don't understand how to do it.: )

1. judy took $30 with her to spend on popcorn and drinks for herself and her friends at the movie theater. the price for each bag of popcorn was $5. the price of each drink was half the price of a bag of popcorn. (a) sketch the graph that represents the situation and label the intercepts. use one axis to represent the number of bags of popcorn and the other axis to represent the number of drinks. (b) explain your graph.