(NEED HELP ASAPP!!) Martin has a $250 gift card to a bookstore. He used the card to spend $56.73 on books. How much is left on the gift card?
$194.27
$306.73
$193.27
$194.73

We just started the introduction into circles and i have no idea how to do this.

Which value of m will create a system of parallel lines with no solution? y= mx - 6 8x - 4y = 12

When you have 25 numbers, and jake picks 3 random numbers and puts them back, what is the chance bob has of picking those 3 numbers when he picks 6 random numbers (without putting them back)? explain.