Answer:
A. 
Step-by-step explanation:
1.8 divided by 7.74 is 0.23 .
And 56.4 divided 4.7 is 12 .
Answer:
b^2√30b
Step-by-step explanation:
√30b^5 - Original
Break down the radical with its factors (factor tree)
√3*2*5*b*b*b*b*b
See what perfect squares you can take out (Can take out four b terms) You cant take out any perfect squares involving 30 since there are no perfect squares
b^2√3*2*5*b
b^2√30b
