Which is the area of a trapezoid with base of 10m and 20m

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

Which table represents points on the graph of h(x) = 3√-x+2?