The answer is C. SAS postulate and SSS postulate.
You are trying to simplify 3x + 2 + (-5). Combine like terms.
2 - 5 = -3
3x - 3 is your answer
hope this helps
Answer:
9/20
Step-by-step explanation:
There are 20 - (5 + 6) = 9 blue counters in the box.
Lethna picks one of the 20 counters from the box, all equally likely to be chosen.
The probability that a blue counter is chosen is 9/20, the number of blue counters divided by the total number of counters in the box.