Answer:
25a2b2+4a2b+6ab2-4ab+7
Step-by-step explanation:
=sum of two polynomials -one addend
=20a2b2-8a2b+6ab2-4ab+2-(-5a2b2+12a2b-5)
=20a2b2-8a2b+6ab2-4ab+2+5a2b2-12a2b+5
=25a2b2+4a2b+6ab2-4ab+7
Option second!!!!!!!
The answer is B
1/2 a mile
an hour is 60 minutes long. she walked 1/4 of a mile twice.
