Round to the nearest tenth if nessary

Why do interests rates on loans to be lower in a weak economy than in a strong one

What is the explicit formula for this sequence? -7, -4, -1, 2, a.) an = 8 + (b - 1)3 b.) an = -7 + (n - 1)3 c.) an = 3 + (n -1) (-7) d.) an = -7 + (n - )

Find the zeros of each function. f(x) = 6x^2 - 7x - 20