How about I have no idea...
Answer:
Step-by-step explanation:
Data:
Predicted = 275 lb
Actual = 307 lb
Calculation
= 0.104 × 100 %
= 10.4 %
The percent error of the zookeeper's prediction was .
2a+4(7+5a)
Distribute 4 into 7 and 5a
2a+28+20a
Combine like terms
Final Answer: 22a+28
Answer: -101
Step-by-step explanation: f(n) = 19-6*n
f(20) = 19 - 6*20
f(20) = -101