Answer:
Step-by-step explanation:
7x + 3 = 9x - 19
-2x + 3 = -19
-2x = -22
x = 11
DE= 7(11) + 3 = 77 + 3 = 80
EF = 9(11) - 19 = 99 - 19 = 80
80 + 80 = 160 for DF
Answer:
See below
Step-by-step explanation:
The area is 15 square units.
-hope it helps
Answer:
Can you explain more ????
Step-by-step explanation:
Divide 345 by 7. the answer you then multiply it by 9.