If you were to fair six sided dice what is the probability that the sun is four or higher

Solve the system of equations. y= 2x y= x^2 - 15

The radius of the circle is 4 cm and the measure of the central angle is 90° the area of the sector with a central angle measuring 90° and radius of length 4 cm is vt cm the triangle in the sector is 4 cm the area of the triangle is v/cm² the area of the segment of the circle is (471 - ) cm?

How is working backward similar to solving an equation?