Answer:

Step-by-step explanation:
We are given that
Initially the difference between the cake's and the cooler's temperature ,a=50 degree Celsius

We have to find the function that gives the temperature difference in degrees Celsius D(t).
We know that

Substitute the values


This is required function that gives the temperature difference in degrees Celsius.
1 figure = $17 so you multiply 4 and 17 to get 68
Martin will need to save $68
Answer: look at the picture
Step-by-step explanation:
Answer a just of food
Step-by-step explanation:by 4 percent of all and how many people
You use inclined planes by putting an object on something and push it down like a ramp.