Hope the image below helps :)
Answer:
so i think its 
at the bottom: 6 x 7 = 42
sides: 5 x 7 x 2 = 70
triangles : 2 x 1 / 2 x 6 x 4 = 24
42+70+24 equals to 136!! hope u understand ^^
Answer:B
Step-by-step explanation:I hope it help
Answer:
Step 3 is incorrect
Step-by-step explanation:
4(-1/2x + 7) + 5x = 15
-2x + 28 + 5x = 15
3x + 28 = 15
3x + 28 - 28 = 15 - 28
3x = -13