Need help with number 5. And 10. Please

If an x intercept only touches the x axis it means it has a multiplicity of 2. if an intercept goes through the axis it has a multiplicity of 1 true false

Bradley hikes 12 miles in 3 hours. in relation to bradley’s hike, which statement describes the expression

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.