Answer:
Read below
Explanation:
A. Correct
( reduce the fraction and divide the numbers )
B. Incorrect
( 6 x -7 = -42 )
C. Incorrect
( Any expression divided by it's opposite equals -1 )
D. Correct
( found the product and -30 = -30 )
E. Correct
( reduce the fraction )
F. Correct
( found the product and 120 = 120 )
Hope this helps! :)