-x(3+4)
If you distribute it to all the numbers the simplest form would be -3x-4x
use the substitution method
b+7
19+7
Answer: 26
Yeah its gonna be 18 square feet in wide and length and the area is gonna be 36 square feet
209 rounded to the nearest ten; 210
209 rounded to the nearest hundred; 200
Hope this helped ;)