28 When the water has mo chemicals, the mumber of bacteria (6) is 1200 per gallon. For each tablespoon of the chemical solution(c) added to each galloncie water, the number of bacteria decreases How much of the chemical, in tablespoons, must be added to a 500- gallon tank to reduce the bacteria count to a safe 300 bacteria per gallon? ​

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.

Math it's appreciated. (picture provided)

If you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain.