Mary practiced violin for 2 hours and her brother practiced trombone t times as long or 8 hours. write and solve an equation to find how many times as long mary's brother practiced trombone

Can somebody me out with this question

What is the slope of the line (-7,2) (4,6)

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.