On a road trip, sara’s brother drove 47.5% of the trip, and sara drove 80% of the remainder. if sara drove for 4 hours and 12 minutes, how long was the road trip?

In terms of x, find an expression that represents the area of the shaded region. the outer square has side lengths of (x+5) and the inner square has side lengths of (x-2), as shown. area: a1 x + a2 square units submit