Combine like terms to simplify the expression:
1.3b+7.8−3.2b

Which measurement is the most precise? a) 29 cm b) 28.8 cm eliminate c) 28.76 cm d) 28.762 cm

I’ve been trying all day to figure this puzzle out. i need the work for it aswell. it is a factoring polynomials tarsia. the image is below.

Annabelle's homework is 75% it took her three hours how long should she estimate it will take her to complete her homework.