john went to his uncle's house riding his bicycle at 15km/h and came back at 10 km/h whats his average speed for the whole journey

Use the formulas a = x 2 – y 2, b = 2xy, c = x 2 + y 2 to answer this question. one leg of a right triangle has length 11 and all sides are whole numbers. find the lengths of the other two sides. the other leg = a0 and the hypotenuse = a1

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out

Jude is making cement for a driveway. the instructions show the amount of each ingredient to make 1 batch of cement. complete each statement to adjust the ingredients for each new situation if jude uses these instructions.