HELP IS EXTREMLY APPRIECIATED

Which is the equation of a hyperbola with directrices at x = ±3 and foci at

(4, 0) and (−4, 0)?

A. x squared over 16 minus y squared over 4 equals 1

B. x squared over 12 minus y squared over 4 equals 1

C. y squared over 16 minus x squared over 4 equals 1

D. y squared over 12 minus x squared over 4 equals 1

The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.

6.(q^9)^2 a. 2q^18 b. q^18 c. q^81 d. q^11 7.(6q^6)^-4 a. 6q^1296 b. 1296q^2 c. 1/1296q^24 d. 6q^-24 8. what is the value of 12x^-3 y^-1 for x = -1 and y = 5? a. -12/5 b.-10 c.-0 d.5/12 9. (y^-5)^10y^10 a. y^-60 b. y^60 c. y^-150 d. y^150 find the simplified form of each expression. 10. (4/7^5)^2 a.8/14^10 b.16/49^25 c.16/49y^10 d.8/14y^25 11. determine if the number 3.43 times 10^-6 is written in scientific notation. if not, explain. a. yes; the number is written scientific notation. b. no; the first factor is not a number between 1 and 10. c. no; it is not written as a number times a power of 10

If myesha works overtime, she gets paid "time and a half" for every hour she works. in other words, for every hour over 40 hours myesha works each week, she gets her hourly pay plus half her hourly pay. what is myesha's pay per hour when she works overtime?