Find the circumference of a circle whose diameter is 4

Easy points boii. read it. ya. fresh

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

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.