What is the answer 8.325 divide by 10 to the 3 power?

How do i do this? i don’t understand

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 are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2