A population of antelope starts at 138 antelopes. If the antelopes begin to die off at a rate of 12% per year, which function below models the population of antelopes? A) f(x)=1.12(.08)^x
B) f(x)=138(.88)^x
C) f(x)=138(1.12)^x
D) f(x)=12•(138)^x

What is the expression in factored form? -20x^2 - 12x a. 4x(5x+3) b. -4x(5x-3) c. -4(5x+3) d. -4x(5x+3)

Beth divided 9 ounces of her granola recipe into 4 equal-sized amounts. she placed the amounts into individual bowls. the fraction 9/4 represents the number of ounces of granola in each bowl. which other number represents the amount of granola beth has in each bowl? (a) 1 1/4 (b) 2 1/4 (c) 1 3/4 (d) 3 3/4 i need !

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)