7 x 10 with power of 3 on top of 10 in standard notation

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?

What other information do you need to prove triangle dac=bca by asa

What is not true about kl and mn? what is mn? (show )