The high temperatures for the last seven days are: High Temperatures: 81, 78, 83, 89, 80, 87, 78 Find the MEAN of the temperatures. Round to the nearest tenths place.

A. 82.3

B. 89

C. 83

D. 78

A. 82.3 to nearest tenth.

Step-by-step explanation:

The mean

= ( 81 + 78 + 83 +, 89 + 80 + 87 + 78) / 7

= 576/7

= 82.2857.

The first one 9³

Step-by-step explanation:

Note:   9³ or nine to the third power or 9-cubed is correct, because we are multiplied the number 9 by itself, three times

   The value equal to:    

             9*9*9 is equal to:  9³

     that is, nine to the THIRD power or:

                 nine to the power of three