Alexia started babysitting when she was in high school. she has built a reputation for herself and has become popular among the neighborhood parents. alexia charges $10/h and gets a $5 automatic tip. alexia needs $75 to buy a present for her mother. she wants to find out the minimum number of hours she needs to babysit at one job to get the money she needs. (5 points) a. write an inequality to show how to solve this problem. identify what the variable is and what it represents. b. solve the inequality to find out the minimum number of hours alexia needs to babysit. show your work.

What is sin 7x/4 ? i need on this urgent trig

How many solutions does the nonlinear system of equations graphed below have?

It appears that people who are mildly obese are less active than leaner people. one study looked at the average number of minutes per day that people spend standing or walking. among mildly obese people, the mean number of minutes of daily activity (standing or walking) is approximately normally distributed with mean 376 minutes and standard deviation 64 minutes. the mean number of minutes of daily activity for lean people is approximately normally distributed with mean 528 minutes and standard deviation 107 minutes. a researcher records the minutes of activity for an srs of 7 mildly obese people and an srs of 7 lean people. use z-scores rounded to two decimal places to answer the following: what is the probability (image for it appears that people who are mildly obese are less active than leaner people. one study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 mildly obese people exceeds 420 minutes? what is the probability (image for it appears that people who are mildly obese are less active than leaner people. one study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 lean people exceeds 420 minutes?