Abag contains 3 red marbles, 5 green marbles and 7 blue marbles. if janelle picks one marble out of the bag, what is the probability that the marble is red?

A)26•2=52there are 2 sides with the same length116-52=64the other 2 side have to be half of 64 each64/2=32the width is 32b)make two sentences about these steps because your teacher knows how you write and explain things.