Yx = -wvu
v =

Please help asap

Two lines that do not intersect are skew. always sometimes or never

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?

Is the square root of 4 plus the square root of 16 rational?