Hector spent 40.15 for the dvds the sales tax was 2.55 and he didnt hve a coupon? how much would each dvd cost?
plz fast.

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.

One integer is 5 more than another. their product is 104. find the integers

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10