A zookeeper predicted that the weight of a lion would be 2.8 pounds. When the zoo's gave birth, the lion weighed 3.5 pound. What was the percent error?

20%

Step-by-step explanation:

3.5-2.8=0.7

0.7/3.5=0.2

0.2*100=20

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^