At sea level, the atmosphere exerts a pressure of 450 pounds on a surface with an area of 30 square inches, How much pressure per square inch does the atmosphere exert on surfaces at sea level? A. 0.067 Iblin.2 B. 15 lb/in. 2 C. 30 lb/in. 2 D. 13,500 lblin.2

What is sin 7x/4 ? i need on this urgent trig

(mc 02.03) what set of reflections and rotations would carry rectangle abcd onto itself? reflect over the y-axis, reflect over the x-axis, rotate 180° rotate 180°, reflect over the x-axis, reflect over the line y=x reflect over the x-axis, rotate 180°, reflect over the x-axis rotate 180, reflect over the y-axis, reflect over the line y=x

Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15