You spend $17 on ingredients to make cookies. You charge $5 per container of cookies. How many containers do you need to sell to earn $13 in profit?

How do i work this problem out using the equation a=pe^rt

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables

Write the factored form of this trinomial 9x^2+18x-7