A submarine dives below the surface, heading downward in nine moves. If each move downward was 145 feet, where is the submarine after it is finished diving? The submarine would be
123
feet below sea level, or
43
feet.

65 8 7 4 5 6 8 4 3 2 1 9 5 6 4 2 1 6 5 1 5 1 3 2 3 5 multiply the third number in the first row by the seventh number in the third row. add this result to the fifth number in the second row. add to this total ten times the fourth number in the third row. subtract the eighth number in the first row from the result.

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap