Step-by-step explanation:
let the unknown number be x
1St step: twice the number is 2(x) =2x
2nd step: 2x -14
3rd step: 2x - 14=28...
Answer:
64 sq. units
= 64 sq. units
12
Well the way i said it was
-
42-30= 12
altho i not very sure
30 sides
Idk