Explain how you know 21 over 30 is greater than 2 over 3

Ac contractor is building a new subdivision outside of the city. he has started work on the first street and is planning on the other streets to run in a direction parallel to the first. the second street will pass through (-2,4) find the equation of the location of the second street in standard form. a.2x+y=2 b. x-y=2 c.2x+y=2 d.x+y=2

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827

What is the measure of sty in oo below? 130 310 230 50