A new car can go 490 miles on 10 gallons of gas. How many miles can it go on 55 gallons of gas?

Me find the value of x each figure.

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

Ateacher wanted to buy a chair, a bookshelf, two tables and a desk. she spent $900 for all five items and the chair and the desk combined 70% of her total. if the bookshelf cost $50, how much did each of the tables cost?