Which statement is true about quadrilateral QRST?
its on edge ifykyk. PLEASE HELP

Amerchant has coffee worth $60 a pound that she wishes to mix with 50 pounds of coffee worth $90 a pound to get a mixture that she will sell for $70 a pound. how many pounds of the & 60 coffee should be used?

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.