A box contains 11 marbles—7 red and 4 green. Five of these marbles are removed
at random. If the probability of drawing a
green marble is now 0.5, how many red
marbles were removed from the box?
A. 1
I
B. 2
C. 3
D. 4
E. 5

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c

An engineer scale model shows a building that is 3 inches tall. if the scale is 1 inch = 600 feet, how tall is the actual building?

Your vet has placed your pet on a diet. the diet is to contain at least 12 mg of fat and at least 14 mg of protein per serving. these requirements are to be obtained from two food sources. source a contains 2 mg of fat and 2 mg of protein per serving. source b contains 1 mg of fat and 3 mg of protein per serving. if source a sells for $1.28 per serving and source b sells for $1.12 per serving, how many servings of each type should be purchased to satisfy the requirements at minimal cost?