The shannon family owns two properties. the first property is a house and the second property is a parcel of land. the following functions represent the value of both properties, in thousands of dollars, after x years.

house: f(x) = 215(1.075) ^x
land: g(x) = 75(1.04) ^x

write function t that represents the total value, in thousands of dollars, of the shannon family's two properties.