What expression is equivalent to 6x + 13 - 3x -7

The number of fish in a lake can be modeled by the exponential regression equation y=14.08 x 2.08^x where x represents the year

Aplot of land has been surveyed for a new housing development with borders ab, bc, dc, and da. the plot of land is a right trapezoid with a height of 60 feet and an opposite leg length of 65 feet

What is the solution to the system of equation graphed belowa.(0,-4)b.(2,5),1),-3)