An arrow is 2 1/2 inches long to the nearest 1/2 inch and the nearest 1/4 inch. What is the shortest the arrow can be?

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning

Find the magnitude, correct to two decimal places, made by each of the following with positive direction of the x axis a) y= x the answer is 45° but i don’t know how

Lines a and b are parallel. what is the value of x? -5 -10 -35 -55