What's the equation of the line in y=mx+b form?

In the 30-60-90 triangle below side s has a length of and side r has a length

Jordan has $5.37, which he is using to buy ingredients to make salsa. he is buying one red pepper for $1.29 and three pounds of tomatoes. if jordan has exactly the right amount of money he needs, what is the price per pound of the tomatoes? choose the correct equation to represent this real-world problem. solve the equation and verify the reasonableness of your answer. a pound of tomatoes costs .

Cole says the distance between points (-5,0) and (0,-5)is 5 units. is he correct? explain why or why not.