Answer:
3:7 or 3/7
Step-by-step explanation:
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72
It showed us the formula to solve it.
12x12 = 144
144 divided by 2 = 72
72 is the answer.
the answer is -30
| 2 4 |
| 3 -9| = ( 2 * (-9) ) - ( 4 * 3)
= - 18 - 12
= -30
