Math questions! Please help.

Question

Q6. Alex found the average change of his stocks over the following months: -10.29 in June, -8.16 in July, +34.50 in August, and +3.12 in September. Estimate the average change in his stocks by rounding to the nearest whole number:

A. 

+5  B.  

 

+4    

 

C. – 19    

 

D. – 20

Q7. Estimate the length of one side of a square floor if the area is 320 square feet. Round to the nearest whole number:

A. 

16    

 

B. 17 C.  

 

18    

 

D. 19

Q8. The home team’s score was 102 points. If you doubled the visiting team’s score and subtracted 60, you also would have 102 points. What was the visiting team’s score? (Guess and check or creating a table may be helpful.) : A. 81 B. 50 C.51 D. 2

 

 

Q9. 

Herman is making a small right isosceles triangular table. If two of the sides will measure about 25 inches each, how many inches should the longest side measure? Round your answer to the nearest tenth:

A. 35.4 B. 50 C. 51 D. 75.3

 

Answer 1

6)

Alex found the average change of his stocks in months are,

-10.29 in June, -8.16 in July, +34.50 in August, and +3.12 in September.

Find the average change in his stocks.

Option A is correct choice.