Which is the directrix of a parabola with equation X^2=8y

Harry and Gwen ride in a bicycle race. Harry clocks 102.62 meters per minute, and Gwen clocks 101.94 meters per minute. What is the difference in their cycling speeds?

What adds to 6 and multiplies to 18

Which is a multiple of 15? a. 1 b. 5 c. h d. 15

Fifty-two hundredths of what number is 104

The speed at which a certain computer can access the Internet is 2 megabytes per second. How fast is this in megabytes per hour?

What is the answer to this problem? 7-3x - 15=19

1/2a - 1/2 = - 3 solve the following equation

Henry wants to resize a 10 inch wide by 12 inch long photograph for the school newspaper. It is to fit in a space that is 5 inches wide. What is the length of the resized photograph in inches? a. 6 inches c. 4 inches b. 12 inches d. 7 inches

If X = 3 units, Y = 9 units, and Z = 5 units, what is the volume of the right rectangular pyramid shown above?

How many solutions does the equation 6y - 3y - 7 = - 2 + 3 have? A. Two B. None C. Only one D. Infinitely many Also explain how you got the answer so i can learn more about it.