If a man earns $420 interest in one year at 7%, what was the amount of money invested?

What are the constants in this expression? -10.6+9/10+2/5m-2.4n+3m

Two streets intersect at a 30- degree angle. at the intersection, the are four crosswalks formed that are the same length. what type of quadrilateral is formed by the crosswalks?

Answer asap evaluate 4-0.25g+0.5h4−0.25g+0.5h when g=10g=10 and h=5h=5.