Jerry has 4 times as many followers than Rob. If the Difference between their followers is 12. How many followers does each person have.​

Y=4x^2+x-1 solve using quadratic formula

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.

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?