Hector spent 36.75 for 2 dvds that cost the same amount. the sales tax on his purchase was 2.15. hector also use a coupon for 1.00 off his purchase. how much did each dvd cost?
need fast plz. ill mark u as brainliest.

An objects motion is described by the equation d= 4sin (pi t) what will the height of the object be at 1.75 seconds?

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

Need now max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.