Mathematics Homework Help

1)  The lowest daily
temperatures in St. Paul, Minnesota for the first week of January are recorded
in the table below:

DAY	Lowest daily temperature in degrees Fahrenheit
Monday	10º F
Tuesday	-3º F
Wednesday	-9º F
Thursday	-1º F
Friday	7º F
Saturday	-5º F
Sunday	-6º F

Find the average of the low temperatures for that week in
St. Paul. Please show all work and write a complete answer, including
appropriate units.

2)  The top of a
mountain has an altitude of 15,158 feet above sea level and the bottom of a valley
nearby is at 178 feet below sea level.

a) 
Find the difference between these
two elevations.  Write a complete answer,
including units.

b) 
Round your answer from part (a) to
the nearest 10 feet.

c) 
Round your answer from part (a) to
the nearest 100 feet.

d) 
Round your answer from part (a) to
the nearest 1000 feet.

e) 
Round your answer from part (a) to
the nearest 10,000 feet.