So WX is 7y +4 and XY is 21, and when you add those lines you get the whole thing, which is 12y so write that like an equation
12y = 7y+4+21
12y = 7y+25
5y = 25
y = 5
Answer:
use app Gauthmath its will give you the answer
Answer:
70
+30x-140
Step-by-step explanation:
(7x+3) (10x-14)
70
-98+30x-42
70
+30x-42-98
70
+30x-140
The last one is correct because a prism is length * width * hight