Two given angles cannot be both.. A. congruent and complementary

B. vertical and congruent

C. adjacent and congruent

D. vertical and adjacent

Please help me :(

An advertising firm has an old computer that can prepare a whole mailing in 6 hours. with the of newer model the job is complete in 2 hours. how long would it take the newer model to do the job alone?

Use the distributive law to multiply. 3(4x + 5y + 6)

The price of a dozen eggs was $1.63. suppose the price increases m dollars per dozen and then the price decreases $0.12 per dozen. which expression represents the current price of eggs after the two price changes?