I need help please!!

Ajar contains a mixture of 20 black marbles, 16 red marbles, and 4 white marbles, all the same size. find the probability of drawing a white or red marble on the first draw. 125 12 01 next question ask for turn it in

At 6 1/2 cents per pound of string beans how much does 7 pounds cost

Arectangle has a width of 5 cm and a length of 10 cm. if the width is increased by 3, how does the perimeter change?