A. if all 110 million households spent the same additional dollars on appliances, electronics, and furniture as the sample 30,000 rebate receiving households did so, how much did the aggregate consumption increase? B. If the MPC was 0.9, how much would the cumulative spending increase as a result?

If you could answer these your a life saver

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.

Which number line correctly shows 0.8 + 0.3?