The number of milligrams of a certain medicine a veterinarian gives to a dog varies directly with the weight of the dog. if the veterinarian gives a 30-pound dog 3/5 milligram of the medicine, which equation relates the weight, w,and the dosage, d?

Which sum or difference identity would you use to verify that cos (180° - ∅) = -cos ∅? a. sin (α -β) = sin α cos β – cos α sin β b. cos (α -β) = cos α cos β – sin α sin β c. cos (α -β) = cos α cos β + sin α sin β d. sin (α + β) = sin α cos β + cos α sin β

Maria donates a fixed amount, a, to a charity each month. if she donates $300 in 12 months, what is the equation for a? a. a + 300 = 12 b. a × 300 = 12 c. a × 12 = 300 d. a + 12 = 300 e. a + 32 = 100

Haley buys 9 pounds of apples for $3. how many pounds of apples can she buy for $1?