An electric can opener is worth 38 dollars when it is new. after each year it is worth half what it was the previous year. what will it's worth be after 4 years?

How can the correlation in the scatter plot graph below best be described? positive correlation negative correlation both positive and negative no correlation

Jamie went to home depot.she bought 25 bags of soil that cost $9 per bag.she bought 15 pots at $8 each,and she bought 23 bags of pebbles at $15 each.she used a coupon that gave her $5 off for every 100 dollars she spent.how much did jame pay at the end?

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?