<span>Your input 6,12,18,24,30,36,42,48 appears to be an arithmetic sequence</span>
He would use 9 bills, and 5 coins. (fours $10, one $5, four $1. three quarters, one dime, and one penny). I calculated it all to make sure the total came out as 49.86
I can’t see it needs better lighting
the answer is 63 because 63*2=126 and 126+54=180 and all triangles add up to 180