Ounces of medication vary directly with the weight of the patient. If a 120lb, adult requires three-fourths of a ounce of medication, how many ounces are required for a 200lb, adult?

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.