1. If r varies directly as s and inversely as the square of u, £
r =2 when s = 18 and u =2, Find :
a. r when u = 3 £ s = 27
b. s when u = 2 £ r = 4
c. u when r = 1 £ s = 36
2. P varies directly as Q and the square of R £ inversely as s, Find:
a. k if p = 40 when Q =5, r = 4 £ s= 6
b. p when Q =8, r =6 £ s =9
c. s when p =10, Q =5 £ r =2
Please pa answer po w/ solution , A , B and C.
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