Answer:
5a(c-2ab+6)
Step-by-step explanation:
5a is in all three, then factorise
-10 negative -3 positive -2 positive 1- positive
Pulling out a black pen first will grant you a 40% chance of that occurring, then when you put it back the probability of you pulling out a red pen would be 50% so in decimal form these two values would be .40 and .50 multiply these two together you should get .20 or a 20% chance. Also a written fraction would be 1/5, all of which are valid answers.
Answer:
992
Step-by-step explanation:
