How to solve the proportion 2/7=x/42

What is the slope of the line that contains the points (4,8) and (9,8)? what type of line is it?

When the ball has traveled a distance of

22 points algebra 1//sum and product of rational and irrational numbers. dont have to do all 4 if could much : )) write an example: 1) how the product of two identical irrational numbers can be a rational number. 2) how the product of two different irrational numbers can be a rational number. 3) write a quotient of intergers that is not a real number. 4) is the set of positive irrational numbers closed for the operation of division? if not give a counter example.