Help urgent please! evaluate 3^-2?

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?

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

On the first of each month sasha runs a 5k race she keeps track of her times to track her progress her time in minutes is recorded in the table