I need help with the number 5-12.

Isee the amount was $90.00 then reduced to $75.00 , what is the percent ?

Two rigid transformations are used to map abc to qrs. the first is a translation of vertex b to vertex r. what is the second transformation? a reflection across the line containing ab a rotation about point b a reflection across the line containing cb a rotation about point c

Alicia puts $400 in a bank account. each year the account earns 5% simple interest. how much money will be in her bank account in six months?