Andy bought 4 hamburgers snd 2 milkshakes for $13.50. Danny bought 3 hamburgers and 1 milkshake for $9.25. What cost of a hamburger and milkshake?

A hamburger costs $2.5 and a milkshake costs $1.75

Step-by-step explanation:

   4H + 2M = 13.50 (1)

&  3H + 1M =   9.25 (2)

   6H + 2M = 18.50 (3)

⇒ - 2H = - 5

⇒ H = $2.5

⇒ 3 × 2.5 + M = 9.25

⇒ 7.5 + M = 9.25

⇒ M = $1.75

answer is 144

step-by-step explanation: