To make the inequality, we will use the ≥ sign to determine how many more tickets we will need. Before we write the inequality, let's see how much money was already made by the present tickets. 70 x 9.50 = $665. We can write the inequality as $665 + $9.50t ≥ $1000 where t is the number of tickets sold. Now we can solve $665 + $9.50t ≥ $1000, subtract 665 $9.50t ≥ $335. Now isolate the t by divide 9.50 to both sides t ≥ 35.26 which we can round up to 36 because you cant sell 35.26 tickets. So you need at least 36 more tickets to earn at least $1000
Well you only do that when you are in the ones place and you have to regroup a 1in the tens place if you go past 19 then you are going to have to regroup a 2
