Idk how to answer this, some one ! : ) katie borrowed $2,500 at 10% interest for 5 years. what was the total interest? a. $12.50 b. $125.00 c. $1,250.00 d. $12,500.00

Just tell me how to set up the equation.

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%

What is the perimeter of an isosceles triangle with each leg measuring 2x+3 and the base measuring 6x-2?