How many solutions does the system have? y= -2x + 1 y= -2x^2 + 1

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)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

Acircle has a circumference of 28.36 units what is the diameter of the circle