Jaquez earns money by doing yard work. it takes her an average of 3 hours to pull
weeds and an average of 2.5 hours to mow the lawn. she can work no more than 8
hours a day. she charges $50 to weed and $65 to mow the lawn. she needs to cover
her expenses of $120 to make a profit. write a system of inequalities that would
determine how many flowerbeds and lawns he could complete on a given day. (note -
you do not need to solve, just write the system and label the variables you use).

introduction, methodology, results, discussion

step-by-step explanation:

an observational study is one which consists of actual observation to record data and then analyse the data.

there are a number of factors that should be analyzed before starting an observational study.

the main four factors are:

i) introduction:   this should be analysed to check whether the purpose of the study is correctly established and the data recorded are appropriate for the study

methodology:   the method of collecting the data, such as whether randomly selected, and whether sample size matches with the population to be studied, whether questions asked are easy to answer by common men, etc.

results: then results such as summary of data with comments should be studied thoroughly

discussion:   the last is the discussion, this can be either by management people or persons who are all interested , etc.

hdjd

step-by-step explanation:

0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)