Raul is 15 years old and his brother Marco is m years old. In 3 years, Raul will be twice as old as Marco. Which equation can be used to find m

This is different from the first one can someone me

In parallelogram abcd the ratio of ab to bcis 5: 3. if the perimeter of abcd is 32 find ab

The marriott family bought a new apartment three years ago for $65,000. the apartment is now worth $86,515. assuming a steady rate of growth, what was the yearly rate of appreciation? what is the percent of the yearly rate of appreciation?