R is inversely proportional to A. R= 12 when A = 1.5
a) Work out the value of R when A = 5.
b) Work out the value of A when R = 9

i  think it is b because i did the question

hope it

step-by-step explanation:

x^(1/6) · x^(1/6) · x^(1/6)   ·x^(1/6) = x^(4/6)   since we add the exponents

4/6 can be simplified to 2/3

the simplified form is x^(2/3)