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12. Which situation can be presented by the signed number -8?
a. A decrease in 8 points
c. gained 8 kilos
b. An increase of 8 pesos
d. a profit of P8
13. What is the opposite of 10 kilometers East?
a. 10 kilometers North
c. 10 kilometers south
b. 10 kilometers East
d. 10 kilometers West​