Answer:
Hope this is right.
1. 7(4x-5)
2. 28x-35
Step-by-step explanation:
answer
congruent trapezoide for one
0,5(9+12)×1,5=15,75
area of picture frame =4×15,75=63
42 < 21+3x < 84
21 < 3x < 63
7 < x < 21
