Writes the pair of fractions with a common denominator for 3/10 and 2/5

Which table shows a proportional relationship between miles traveled and gas used?

Which coefficient matrix represents a system of linear equations that has a unique solution ? options in photo*

Mrs. avila is buying a wallpaper border to go on all of her kitchen walls. she wants to buy 5 extra feet of wallpaper border than she needs to be sure she has enough. she buys 55.5 feet of the border. the store owner selling the border uses the width of mrs. avila's kitchen to determine that the length of her kitchen must be 14.5 feet.