Convert: 15 cubic meters to cubic feet (to the nearest tenth).

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?

An angle that measures between 90 and 180° is called a(,

If square root x = -7, then x= -49 true or false