Guided Practice Which property justifies the first step in solving this equation ?+9=11+9−9=11−9

A.
Substitution Property of Equality

B.
Addition Property of Equality

C.
Subtraction Property of Equality

Ammonia molecules have three hydrogen atoms and one nitrogen atom. how many of each atom arein five molecules of ammonia

It says factor each expression completely 8y+48

Someone answer asap for ! michele pushes a box d meters across a floor. she uses a force f, in newtons, to push the box. she pushes the box for t seconds. the formula p = fd/t calculates the power, p, in watts, that it takes for michele to complete the task. solve the formula for d.