Math will give brainliest! dont answer if not sure.
a quarter circle is attached to the side of a square as shown.

what is the best approximation for the area of this figure?

use 3.14 to approximate pi.

82.2 cm² 114.2 cm² 164.5 cm² 268.1 cm²

Iam trying to solve a linear equation for the shoe size of someone 84" tall taking into consideration example 1 is 69" tall with a shoe size of 9 and example 2 is 72 inches tall with a shoe size of 11. i understand that the equation should be y=mx+b and that on the graph the answer is (3,2) but i just don't understand how to create the equation to solve for 84-inches and 60-inches tall questions. after two days, i need .

An episode of a television show is 60 minutes long when it originally airs with commercials. on a dvd without commercials, the episode is only 417 minutes long. how many1-minute commercials did the episode include when it originally aired? write and solve an equation to justify your answer.

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?