Money Eric returned from a trip to Las Vegas with $300.00, which was 50% more money than he had at the
beginning of the trip. How much money did Eric have at
the beginning of his trip?

$200

Step-by-step explanation:

money he has now is 150% of what he had in the beginning

300 = 1.5x

x = 200

if he had $200 in the beginning, you add half of that to itself (200 + 100 = 300)

correct answer:

b.(19,-2)