Melinda models the situation with the proportion 3/5 = x/30 Explain her error. Then show how to use the correct proportion to solve the problem​

Solve the equation using the given values: x= -2.5; y= -7.51. 2xy + 2x²

Two farmers pay a total rent of $140 for a pasture. the first farmer placed $4 oxen in the pasture, and the second farmer placed $30 sheep in the pasture. the farmers split the rent based on the proportion of the pasture eaten by their own animals that month. how much should the first farmer pay, if 1 ox eats as much as 10 sheep in a month?

Acollege student takes out a $7500 loan from a bank. what will the balance of the loan be after one year(assuming the student has not made any payments yet) a. if bank charges 3.8% interest each year ?