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?

Sandy is ordering bread rolls for her party,she wants 3/5 of the rolls to be whole wheat. what other factions can represent part of the rolls that will be whole wheat? shade the models to show your work.

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle?

Y=2x+5y complete the missing value in the solution to the equation.