Factor the expression: 4d - 4
How do u do this plz help

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.

Which graph represents the linear function below? y-3=1/2(x+2)

Charlie tosses five coins.what is the probability that all five coins will land tails up.