<h3>We have to add decimal after one place so the value of 12 will become 1.2 hence option G is correct.</h3>
She made an error in the STEP 1
she shouldnt multiply the numbers
<em>Answer:</em>
<em>t = 15</em>
<em>Step-by-step explanation:</em>
<em>t - 12 = 3</em>
<em>t = 3 + 12</em>
<em>t = 15</em>