Step-by-step explanation:
A is excluded because in the second() x² should be negative
B is excluded because if you solve it -(-x² give you + x²
C is excluded because in the second() 2x and 1 should be negative
so D is right
Your answer will be 0.35 if you trying to turn the fraction 7/20 into a decimal
Answer:
20 races
Step-by-step explanation:
