Base = 5 * 12 = 60 in^2
Height = 4 in
Perimeter is the sum of all straight
Perimeter = 20 + 16 + 48
Perimeter = 84 in
Perimeter of base = 12 * 2 + 5 * 2 = 34
<h2>
Answer:</h2>
<u><em> 17 + z -(-9)</em></u>
<u><em>+17 +17</em></u>
<u><em>(34) + (26)</em></u>
<u><em> z=60</em></u>
<h2>
Step-by-step explanation:</h2>
<em><u>You need to solve for Z so we need to get z by itself so take 17 and add it to both sides because whatever is on the left side of the equal sign is always what you need to add 17+ 17 then 17+(-9) you get your answers then add those two up then you get z=60.</u></em>
<u><em>Thank you for asking this great question need any other help please let me know by commenting below I'd be glad to help. </em></u>
<u><em>I'd also greatly appreciate you if you mark me as brainliest and click that thanks button.( optional )</em></u>
<u><em>Your brainly friend ( lauralit1 )</em></u>
D. Subtraction property of equality, because since its +34 you have to change it to a subtraction sign and subtract it from both sides. So it should look something like this