Wich values of a, b, c represent the answer in simplest form 7/9 ÷4/9= a b/c

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

Solve the equation by completing the square. x^2+2x=17

700 miles the train takes 5 hours to a travel the distance at what unit rate is the train traveling?