Increase 55 pounds by 37 percent

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2

An unknown number x is at most 10. which graph best represents all the values of x? number line graph with closed circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the left. number line graph with closed circle on 10 and shading to the left.

What are the solutions of the equation x4 + 6x2 + 5 = 0? use u substitution to solve.