Simon veut laver les fenêtres extérieures du 2 étage de sa maison . Les fenêtres sont situées & une hauteur de 8,5 m . Si le pied de l'échelle est m du mur, quelle est la longueur minimale de l'échelle ?

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. what distance from city a is the point where the truck and the car will meet?

What is r i 4.5+10r=-6.5 with work pls

How does reflecting or rotating a figure change the interior angles of the figure?