What is the speed of a plane that travels at a rate of 520 mph against a wind of r mph?

Under normal conditions, 1.5 feet of snow will melt into 2 inches of water. during a winter season high in the mountains, 301 feet of snow fell. how many inches of water will there be when the snow melts?

Can some one me with these questions

1. find the area of the unshaded square 2. find the area of the large square 3. what is the area of the frame represented by the shaded region show