Assignment: using prime factorization investigation

express each of these sums in the form a(b + c) where b and c do not have a common factor. show all work.

1. 6 + 21

2. 27 + 45

3. 32 + 48

4. 30 + 75

5. 88 + 24

Jackie purchased 3 bottles of water and 2 cups of coffee for a family for $7.35. brian bought 4 bottles of water and 1 cup of coffee for his family for $7.15. how much does each bottle of water cost? how much does each cup of coffee cost? i need this done

Multiply. write your answer in simplest form. 3/8 x 5/7

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