If i could type only 20 words per minute, then after 2 weeks of practicing, i started typing 35 words per minute, what would be my percent of increase

The answer is c because you turn 17.5% into a decimal which gives you .175 then you times that by $361.35 which gives you 63.23625 but then you round that which gives you 63.24. then you at 63.24 pulse 361.35 and you round it which gives you $425

First subtract 10 from both side
y^2+6y-16=0
(y+8)(y-2)=0
-8 and 2