Who walks at a faster rate: Johnathan, who walks 60 feet in 10 seconds or Juan, who walks 42 in 6 seconds?

Urgent? will give brainliest given that the blue triangle is a right triangle, which expression correctly gives the area of the red square? a) a2 + b2 b) a2 - b2 c) a2 - c2 d) c2 - a2