When biscuit went to the vet he needed medicine. The medicine says to give 20ml of medicine for every 16 pounds he weighs. If biscuit weighs 65 pounds, how much medicine does he need

2.2°  

step-by-step explanation:

let θ = the angle of elevation.

tanθ =77/2020

tanθ = 0.038 12

      θ = tan⁻¹0.038 12

      θ = 2.2°

for this case we must apply distributive property to the following expression:

the distributive property states that:

then, when applying the property we have to multiply the -2 for each term within the parenthesis: