−3x+2(7x+9)=−103
what does x equal

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.

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.

What is the best approximation for the area of a circle with a radius of 4 m ? use 3.14 to approximate pi