Determine the sign of the product of −10.4×−78.2 . Enter + for positive or ­­­– for negative.(1 point)

The sign of the product of −10.4 × −78.2 is + (positive).

Multiply 82×(−13).(1 point)

The product of 82 × (−13) is −1,066.

Multiply −1 1/6 by 7. Write the answer as a mixed number.(1 point)

The product of −1 1/6 × 7 is equal to −7 7/6 as a mixed number.

Of the cars in a used-car lot, 2/5 are the color gray. 1/3 of the gray cars are electrically powered vehicles. What fraction of the cars on the lot are both gray and electrically powered? Leave your answer in simplified fraction form.(1 point)

To find the fraction of cars on the lot that are both gray and electrically powered, we multiply the fractions 2/5 and 1/3:

(2/5) * (1/3) = 2/15

Therefore, 2/15 of the cars on the lot are both gray and electrically powered.

Lake Profondo has a depth of 84 feet. Lake Segundo is 5/6 as deep. What is the elevation at the bottom of Lake Segundo? (Remember, the elevation is below sea level. Account for this in your answer.)(1 point)

If Lake Profondo has a depth of 84 feet, and Lake Segundo is 5/6 as deep, then the depth of Lake Segundo would be:

(5/6) * 84 = 70 feet.

Since the elevation at the bottom of Lake Segundo is below sea level, the elevation at the bottom of Lake Segundo would be -70 feet.

Divide −72 by −4. Then divide the quotient by −9. What is the final quotient? (1 point)