Answer:
x=20
Step-by-step explanation:
3^x=243^4
3^x=(3^5)^4
3^x =3^20
x=20
The answer is 3.4 because 30 can’t be divided equally into 9, reason being that 9 x 30 = 270 which doesn’t make sense, so you have to divide 30 equally into 9 parts then turn it into a ratio.
Answer: 9 days.
Step-by-step explanation: 27 / 3
Equivalent expressions are expressions with the same value.
The equivalent expression of
is 
Given that:

Open brackets

Collect like terms


Hence, the equivalent of
is 
Read more about equivalent expressions at:
brainly.com/question/18257981