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A quantity p varies partly as the square of m and partly as n. When p=3.8,m=2 and n=-3.When p=-0.2,m=3 and n=2.
(a) Find: (i)the equation that connect p, m and n (ii)the value of p when m=10 and n=4.
(b)Express m in terms of p and n.
(c) If p and n are each increased by 10%,find the percentage increase in m correct to 2 decimal places.