29% discount on one DVD player (cost $172) sales tax is 4% . how much is the after- tax total? please

Is the response to the survey question "did you smoke in the last week question mark "response to the survey question "did you smoke in the last week? " a discrete random variable, a continuous random variable, or not a random variable?

What is the equation of the parabola with focus (-1,-1) and directrix y=1?

Acheetah can run 70 per hour. what is the speed in feet per hour