Trayvon enters a competition to guess how many balls are in a barrel. Trayvon’s guess is 63 balls.
The actual number of balls is 60.

What is the percent error of Trayvon’s guess?

5% error

Step-by-step explanation:

% error = (estimation - actual value)/actual value * 100%

Trayvon's estimation is 63 and the actual value is 60, so our expression is:

(63 - 60)/60 * 100

63 - 60 = 3, so we get:

3/60 * 100

And 3/60 = 0.05, so now we have:

0.05 * 100 = 5

the answer is y < -3 or   y > 3

-3y > 7 + 2

-3 y > 9

y < -3

a

step-by-step explanation: