Any body i really need help

Jim makes $10.35 per hour. write an equation that jim can use to calculate his pay.

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?

Me n o w. i need t h i s. 10 points