Answer:
first one : example: 5•5=25•(-1)=-25
A.
Step-by-step explanation:
+ * + = +
- * - = +
+ * - = -
- * + = -
A. + * + * - = + * - = -
B. - * + * - = - * - = +
C. + * - * - * + * + = - * - * + = + * + = +
D. - * - = -
Therefore, it's A.
Hope this helped! <3
