The decimal 0.16 can be expressed as the fraction x/25. What is the value of x ?

What is the answer to |-2x-5|-|-4+8| and x=7

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.

The base of a triangle exceeds the height by 7 centimeters. if the area is 400 square centimeters, find the length of the base and the height of the triangle.