To understand the eating habits of babies at TLC daycare Lisa survey 30 mothers and baby boys​

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

How do i take any fraction and make it into a decimal or percentage?

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