We have an equation: 56/? = 4/100
Cross multiply:
4*? = 56*100
⇒ ? = 56*100/4
⇒ ?= 1,400
4% of 1,400 days is 56 days~
I can't show you the square root but this is the answer simplified. 4 square roots of 6
A because 40% of 3500 is 40%
1.No denominator contains a radical.
2.no radicand contains a fraction