John and Sara each bought the same type of pen and notebook in the school bookstore, which does not charge sales tax. John paid $5.55 for two pens and three notebooks, and Sara paid $3.50 for one pen and two notebook. How much does the school bookstore charge for one notebook?

Shyam bought 5 two hundred page notebooks and 3 hundred page notebooks from the school store. The price. of a two hundred page book is 9 rupees and the price of a hundred page book is 4 rupees. How much did Shyam spent? Use any letters you like for the number of two hundred page note books bought from this store, the number of hundred page books bought and the total amount of money spent by a student, and write the relation connecting them.

In a shop, one notebook costs ₹ 15, a pencil costs ₹ 10 and a pen costs ₹ 20. How much money does Meena spend for 3 notebooks, 5 pencils and 2 pens?

Father bought 4 pens for us. Price of each pen is 5 rupees. I bought 2 more pens of the same type for my friends. Calculate to find how much money did I and father paid for the pens.