Answer asap!
1. an advertising company charges $40 per half-page advertisement and $75 per full-page advertisement. michael has a budget of $800 to purchase 13 advertisements.
(a) define a variable for each unknown.
write a system of equations to represent the situation.
(b) how many half-page advertisements does michael purchase?
show your work.
(c) how many full-page advertisements does michael purchase?
show your work.
2. solve x^2-6x=-5 by completing the square.
show all work for the steps below.
(a) for x^2-6x+c=-5+c, what value of c is used to complete the square?
(b) substitute the value for c in part 2(a). then complete the square to rewrite the equation as the square of a binomial.
(c) solve for x.

Write and solve a real word problem that involves determining distance on a coordinate plane

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?

Compare the following pair of numbers a and b in three ways. a. find the ratio of a to b. b. find the ratio of b to a. c. complete the sentence: a is percent of b. a=120 and b=340 a. the ratio of a to b is . b. the ratio of b to a is . c. a is nothing percent of b.