ASAP please.

I think it would be b

Step-by-step explanation:

He doesn't want to spend more than 50 and he needs 8 for lunch so the 8 dollars and the book can't go over 50.

Its either a or b im just not sure if its plus 8 or minus 8. sorry

The answer is A

Step-by-step explanation:

It A because each book that he is buying cost 2.5 and the amount of books he buying is unknown so the variable x is place right next to 2.5. But if he wants to buy lunch he has to subtract 8 dollars from his total amount. So since David has a limit of $50 the symbol for the equation should be the less than symbol< because he has to be able to buy lunch and buy the book with less than 50 dollars.

The final equation should be 2.5x - 8< 50

1) c 2143.6 cm

2) c 113.0 m

3) a 33.5 ft

4)   d 2 cm

5) c 20 mm

6) 180 in

7) d 120 ft

i think 5 miles per hour

step-by-step explanation: