5/7, because if u make them to have the denominator, 4/6 would be 28/42 and 5/7 would be 30/42
Answer:
551
Step-by-step explanation:
I used a calculator.
LCM of 9 and 30 is 90
Its 90 a^2b^2c^3
Answer:
The speed of sound is 
Step-by-step explanation:
Let
x-----> the speed of sound
we know that

so

solve for x

Answer:
choice C
Step-by-step explanation:
the same input has 4 different outputs so its wrong