If m∠WXY =160°, what are m∠WXZ and m∠ZXY? The image consist of three rays namely ray XW, ray XZ and ray XY. Measure angle WXZ is 7x-4 degree and measure angle ZXY is 5x+8 degree. A. m∠WXZ = 87° and m∠ZXY = 73° B. m∠WXZ = 94° and m∠ZXY = 78° C. m∠WXZ = 94° and m∠ZXY = 66° D. m∠WXZ = 78° and m∠ZXY = 82°

You just purchased two coins at a price of $670 each. because one of the coins is more collectible, you believe that its value will increase at a rate of 7.1 percent per year, while you believe the second coin will only increase at 6.5 percent per year. if you are correct, how much more will the first coin be worth in 15 years?