Can someone help me please

Find the required measurements of the following trapezoids. a = 8 cm b = 16 cm h = 10 cm

Write each rational number in the form a/b, where a and b are integers. 1. 5 1/6 2. -12

The height above the ground (in feet) of a ball dropped from the top of a 30-foot-tall building after t seconds is given by the polynomial: ? 16t^2+30 what is the height of the ball after 1/2 second?