>_< Please help ASAP do today! If Isaac uses a coupon entitling him to a 25% discount off the purchase price before tax. How much will it his bill be. Assume that a 7% sales tax is applied to the discount price using words. Explain how to find the discounted price. <3​

Let w=23 . what is the value of w + 45 ?

Kylie explained that (-4x+9)^2 will result in a difference of squares because (-4x+9)^2 (-4x+9)^2 =(-4x)^2+(9)^2=16x^2+81

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?