Please help! Show steps please, thanks!! ;)

If Zachary earns $90 simple Interest on $750 at 6% for 2 years, what is his new saving account balance?
@Mathmatics

Question

Please help! Show steps please, thanks!! ;)

If Zachary earns $90 simple Interest on $750 at 6% for 2 years, what is his new saving account balance? 
@Mathmatics

anonymous · Answer

OH spelled Mathematics wrong

anonymous · Answer

you know some formulas to solve this problem dont you?

anonymous · Answer

yeah but I forgot.... :\

anonymous · Answer

Consider this one:A=P+Prt, where P is the principal amount and r is the rate and t is the time

anonymous · Answer

A=750(1+(.06)(2))
  =750(1+.12)
  =750(1.12)
   =840

anonymous · Answer

or just by common sense, if he had 750 in his account and he earned 90 dollars, then he had 750+90=840 dollars in his account

anonymous · Answer

OH ook, Thankss!!!! ;]