⁴√86.21*27.34/52.18*0.0726

Answer 1

any scientific calculator will do this for you
- the only nasty part is the ⁴√86.21 or simply (86.21)^(1/4)

look for a key that looks like y<super>x</super>

press:
86
y<super>x</super>
.25
=

you should get 3.045261646
with this is your display, continue with the rest of the calculation.
I assume you know that * is the commonly used symbol for multiplication

let me know you answer.

Answer 2

assuming the usual carelessness with parentheses, and using any handy online calculator, I get
∜((86.21*27.34)/(52.18*0.0726)) = 4.99435

Answer 3

Let's try this subscrict and superscript part again:

any scientific calculator will do this for you
- the only nasty part is the ⁴√86.21 or simply (86.21)^(1/4)

look for a key that looks like y^x

press:
86
y^x
.25
=

you should get 3.045261646
with this is your display, continue with the rest of the calculation.
I assume you know that * is the commonly used symbol for multiplication and / is used for ÷