The total cost of 4 pens and 7 mechanical pencils are $13.25 . the cost of each pencil is 75 cents . using arithmetic approach, find the cost of a pen

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.

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.

Idon’t understand! use slope intercept form to solve: through: (2,5) slope= undefined