What are the solutions to 3x2 + 12x +6=0 ?

Solve - pv + 40 < 65 for v solve 7w - 3r = 15 for r

Pick the expression that matches this description: a polynomial of the 5th degree with a leading coefficient of 7 and a constant term of 6 (choice a) 7x^5+2x^2+6 (choice b) 7x^6−6x^4+5 (choice c) 6x^7−x^5+5 (choice d) 6x^5+x^4+7

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x