Which year did the ozone hole appear the smallest in km2?

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?

Through: (-3,-3) parallel to y= 7/3x+3

Ihave trouble finding the nth term of a linear sequence