A 20-pound bag of dog food costs $16.20. A 30-pound bag of the same dog food costs $24.90. Which bag of dog food is the better buy?

This is so hard and it’s for a test

An ulcer medication has 300 milligrams in 2 tablets. how many milligrams are in 3 tablets?

1) in triangle the, what is the measure of angle t (in degrees)? 2) in triangle bat, the measure of angle b is 66∘, and the measure of angle t is 77∘.what is the measure of the exterior angle at a (in degrees)?