25-x^2/5x+x^2 lim x -5

When i add money am i supposed to make it like this 7+12 or 7.00+12.00 because i got 19 dollars for my answer

Tessa bought stock in a restaurant for $253.00. her stock is now worth $333.96. what is the percentage increase of the value of tessa's stock? a.) 81% b.) 32% c.) 24% d.) 76%

An ant travels at a constant rate of 30cm every 2 minutes.at what speed does the ant travel per minute