Explain how you can find the sign of the product of two or more rational numbers

(+)(+) - positive

(+)(-) - negative

(-)(+) - negative

(-)(-) - positive

If we have more numbers then:

If the number of negative numbers is even, the result is positive.

If the number of negative numbers is odd, the result is negative.

This only applies to multiplication and division.

i think it is 70

step-by-step explanation:

the answer is 31.27mph