What do you do when a dog is ceying

Solve: 3x+y=6 4x-2y=18 show all work !

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.

F(x) = 1/x g(x)=x-4 can you evaluate (g*f)(0) ? why or why not?