Answer:
3 months
Step-by-step explanation:
x + y = 71.5
x = 47.8
y = 71.5 - 47.8
71.5 - 47.8 = 23.7
y = 23.7 pounds
a=50
a + 2a + 30 = 180
3a + 30 = 180
(-150 from both sides)
3a = 150
(Divide by 3 from both sides)
a = 50
