If the dice is rolled 600 times, about how many 6s would you expect to get

Amerchant has coffee worth $60 a pound that she wishes to mix with 50 pounds of coffee worth $90 a pound to get a mixture that she will sell for $70 a pound. how many pounds of the & 60 coffee should be used?

Which of the following statement about pascal's triangle are true?

Acircle has a circumference of 28.36 units what is the diameter of the circle