4 consecutive numbers that have a sum of 662

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

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?

Find the circumference of a pizza with a diameter of 10 inches round to the nearest tenth