First you have to find out how much one pen costs. To do that, all you have to do is divide $11.77 by 11. So, $11.77/11=$1.07 Then it's just trial and error from there in till you find one that matches. So, A. 4*$1.07= $4.28( This one is wrong ) B. 5*$1.07= $5.35( This one is wrong ) C. 6*1.07= $6.42 ( !!This one is RIGHT!! ) D. 7*1.07= $7.49 ( This one is wrong )
First we need to know how much each pen costs. So we take 11.77 and divide it by 11. That gives us 1.07 per pen. So answer choice A has 4 pens for 4.44, so we need to multiply 1.07 x 4. That gives you 4.28, so we know that isn't the correct answer. For option B, we need to multiply 1.07 x 5. That is 5.35, so that also can't be the answer. For C, we need to do 1.07 x 6, and that gives us 6.42. So we know the correct answer is option C.
The two smaller angles would be the same measurement because the angle bisector cuts the big angle down the middle. So, if the big angle was 90°, the two smaller angels would be 45°.
