When buying a new dress, you have the choice of 3 different lengths, 5 different colors, and 2 different styles. how many choices are there for one dress?

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