An energy department has estimated that solar power plants covering 4242 square miles, or 38% of a certain western state, could generate enough electricity to meet the needs of the entire country. find the area of the state

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?

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20