Question: PLEASE EXPLAIN AND ELABORATE 15. Solve each equation for n. State any restrictions on n. a) nP2 = 20 b ) n+12 = 72 16.

PLEASE EXPLAIN AND ELABORATE

15. Solve each equation for n. State any restrictions on n. a) nP2 = 20 b ) n+12 = 72 16. Solve each equation for r. State any restrictions on r. a) 6Pr = 30 b) 2 (7 Pr) = 420 17. Show that for all values of n, where n E N, n Pn = nen-1

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