Any number raised to the power of 0 is 1.
Therefore, 15^0 = 1
10 because 8 squares plus 6 squared equals 100 and the root of 100 is ten
This one.
The doubly-shaded area is the solution set. The dashed line is not included.
2/3 of 75 is 2/3 times 75, which is 50. Hope this helps. :D