What is the equation of the quadratic graph with a focus of (4,-3) and a directrix of y=-6? A. f(x)= -1/6x^2+4/3x+11/6

B. f(x)= -1/6x^2-4/3x-11/6

C. f(x)= 3/50x^2+11/25x+3/5

D. f(x)= 3/50x^2-11/25x-3/5
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What kind of bond pays interest which is exempt from tax?

Someone answer asap for ! the following statements are true about the coins calvin and sasha have collected. * calvin and sasha has the same amount of money. * calvin has only quarters. * sasha has dimes, nickels, and pennies * calvin has the same number of quarters as sasha has dimes. * sasha has $1.95 in coins that are not dimes. exactly how many quarters does calvin have?

The sum of 5consecutive even numbers is 100. what is the first number in this sequence?