surely you can do the first part
for the second, flip both sides (take the reciprocal)
1/R = (Q-3)/(2p^2) , multiply both sides by 2p^2
2p^2/R = Q-3 , add 3 to both sides
Q = (2p^2/R) + 3
given that R= 2p(squared) divided by Q-3
1)Calculate the value of R when P=6 and Q=12.
2)rearrange the formula to make Q the subject.
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