You give a delivery driver $15.50 for a pizza that costs $12.50. you tell the driver to keep the change as a tip. is the tip more or less than 20%?

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.

What is the slope of the line shown below?

I’m really confused and need to learn this