Which of the following is equivalent to 3^(-8)3^(4)
3^-32
3^-12
3^-2
3^-4

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 these angles are complementary? a. 45o and 45o b. 63o and 117o c. 45o and 135o d. 90o and 45o

E. which of the following is not a possible probability? a. 25/100 b. 1.25 c. 1 d. 0