Alan owes $412.42 on his credit card. He returns two items, one for $48.38 and the other for $49.57. Then he makes purchases of $34.10 and $37.06. What is the new balance on the card?

he now owes $385.63

Step-by-step explanation:

owes $412.42

returns an item for $48.38

-412.42 + 48.38 = -364.04

he now owes $364.04

returns an item for $49.57

-364.04 + 49.57 = -314.47

he now owes $314.47

makes a purchase of $34.10

-314.47 - 34.10 = -348.57

he now owes $348.57

makes a purchase of $37.06

-348.57 - 37.06 = -385.63

he now owes $385.63

b. f(x) = –√x + 3this is the correct answer