Answer:
and 
Step-by-step explanation:
The first answer you are just adding 4 and 1/4. The second answer you are adding a negative number with a postive fraction so you get a negative fraction.
Answer: C. Engine life decreases steady with time.
Step-by-step explanation:
See the image below for a demonstration. Hope this helps out.
Answer:
The dependent variable is d
Step-by-step explanation:
Because the dependent variable depends on the independent variable in this case the amount of money she gets is depended on how many hours she work
Answer:
i think it would be negative6.5z
Step-by-step explanation:
bc thats how it adds up