5a - 4a = -9 - 8a
a = -9 - 8a
9a = -9
a = -1
Put it into standard form so you would have
27x10¯6 divided by 9x10¯6
Then you can divide the numbers so 27/9 = 3
Then to divide the powers you just take them away so - 6--6 = - 6 +6 = 0
Therefore the answer is just 3
Answer:55.44

Step-by-step explanation: I have do my work
Answer: 75
Step-by-step explanation: took test and got it right. this is not fake like other people
Answer:
P = 69!
Step-by-step explanation:
23+17+29 = 69 :)