Which event has a probability of 1/2? Select all that apply. A. rolling a number greater than 6 on a six-sided number cube.
B. Picking a black marble out of a bag of black marbles
C. A flipped coin landing on tails
D. A flipped coin landing on heads or tails
E. Picking a blue marble from a bag of 6 red marbles and 6 blue marbles
F. Rolling an odd number on a six-sided number cube

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations:

a 270° rotation about point p says on e d g e n u it y (had to space it out because it says it's a misspelling so i couldn't submit it