On Sunday Sheldon bought 4 1/2 kg of plant food. he used 1 2/3 kg on his strawberry plants and used 1/6 kg for his tomato plants. He has 2 2/3 left over. Sheldon wants to feed his strawberry plants 2 more times and his tomato plants one more time. how much plant food will he need? does he have enough left to do so.

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