Help me and show work please

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)

Based on the diagram, match the trigonometric ratios with the corresponding ratios of the sides of the triangle. tiles : cosb sinb tanb sincposs matches: c/b b/a b/c c/a

Rewrite the following quadratic functions in intercept or factored form. show your work. y = x^2 + 7x + 10