Answer:
x = -12
Step-by-step explanation:
m∡QRP = 180 - (80 + 43) = 57°
-6x + 51 + 57 = 180
-6x + 108 = 180
-6x = 72
1/2x^2-2=0
-
x=2,-2
Answer:22
Answer: 5,835 gallons
