Evaluate the expression when b= 2 and c = 12

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What is the nth term rule of the linear sequence below? 27 , 25 , 23 , 21 , 19 , . .

15 points ! ~ see if you know the answer to both you!

Find the least common multiple of the expressions: 1. 3x^2, 6x - 18 2. 5x, 5x(x +2) 3. x^2 - 9, x + 3 4. x^2 - 3x - 10, x + 2 explain if possible