Cut five inches to creat the least amount of unused cardboard.
If j is 52° and its a right angle, add 90° and 52°. Then subtract 180° from that answer. Because all triangles add up to 180°.
Add like terms
2+4i +7 +11 i =
2+7 + 4i+11i =
9+15i
AnsweR = 50
Explanation = 50
Soooooo sorry but I only understood part a and c.
sorry