I need help plzz w/ math

How do businesses a country's economy? a. by investing in goods and services b. by increasing the unemployment rate c. by making profits

Two cyclists 84 miles apart start riding toward each other at the same. one cycles 2 times as fast as the other. if they meet 4 hours later, what is the speed (in mi/h) of the faster cyclist?

Mr. rose asked his students to draw a quadrilateral with 4 unequal sides. draw an example of this kind of quadrilateral.