Abag contains 8 blue marbles, 6 red marbles and 4 green marbles. what is the probability of selecting a red marble, replacing it in the bag and then selecting a green marble? a) 7/9 b) 1/3 c) 2/27 d)4/27

What is the solution to the division problem below x3+x2-11x+4/x+4

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of

The price of a car has been reduced from $19,000 to $11,590. what is the percentage decrease of the price of the car?