17.99 with 20% off 17.99*(1-20%)=14.392
40/14.392=2.779
Have to bye 3 shirts to make it more than $40.
(3*17.99*(1-20%)-10)*(1+7.5%)=35.66
Need to by 3 shirts to use the coupon. The purchase is $35.66.
9 - (-3)^2 / 4(7) -9
9 - (9)/ 28 - 9
0/21
0/21 = 0
hope this helps
25, 021.1 km is the radius of Neptune.
6378.1 km (Radius of Earth) + 18,243.9 km = 25,021.1 km