Please answer this

In a certain skyscraper, the elevators whisk you to a restaurant in the skyscraper at a speed of 800 feet in 100 seconds. If the restaurant is 300 feet up, how long will it take you to reach the restaurant by elevator? it will take seconds to reach the restaurant using the elevator. [Type an integer or a decimal.) Solve the proportion. 2b-2 b-1 5 10 b= (Type an integer or a simplified fraction.)The measures of the three angles whose sum is 153\" are in the extended ralie 325:9. Find the exact angle measures. The measures of the angles in degrees are '1. [Use a comma to separate answers as needed. Do not include the degree symbol in your answers.) Determine whether the following statement is true or false. Justify your response. All squares are rectangles. Choose the correct answer below. O A. True; a square is a parallelogram with four right angles. O B. False; a square is a parallelogram with four congruent sides. O C. False; both pairs of opposite sides of a square are parallel. O D. True; the diagonals of a square bisect each other.Find EF in the trapezoid. A x+4 D E 3x 31 C B EF