What is 67 time 14 plus 57 equals to im doing a test right now

Abag contains 3 red marbles 4 white marbles and 5 blue marbles if one marble is drawn from the bag what is the probability that the marble will be blue

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

Moira has a canvas that is 8 inches by 10 inches. she wants to paint a line diagonally from the top left corner to the bottom right corner. approximately how long will the diagonal line be?