Step-by-step explanation:

Answer:
6510
Step-by-step explanation:
7.75 x 840 = 6510
Answer:
D
Step-by-step explanation:
Answer:
-12, or 1 (see explanation)
Step-by-step explanation:
(-3)(+4)
Is the same as
4 * (-3)
which is
-12
Unless your problem is:
(-3) + 4
Then it is the same as
4 - 3
which is
1