SOMEONE HELP PLEASE ILL GIVE BRAINLIEST! 1.) Donald simplified his expression, but he did so incorrectly. Find his mistake, fix it, and figure out the correct simplified expression.

Mistake:

Work:

Final

2.) Eric simplified his expression without showing his work. Is his answer correct? Explain your reasoning.

Is his answer correct?: _

Explain:

3.) Finally, Eric and Donald had to simplify the expression below for when x = -6. Simplify it for them and show your work.

y = 7|√25 - 8| + 72x-2

Work:

Final y = _

The ratio of men to women working for a company is 4 to 5 . if there are 90 women working for the company, what is the total number of employees?

Quick! a survey of 57 customers was taken at a bookstore regarding the types of books purchased. the survey found that 33 customers purchased mysteries, 25 purchased science fiction, 18 purchased romance novels, 12 purchased mysteries and science fiction, 9 purchased mysteries and romance novels, 6 purchased science fiction and romance novels, and 2 purchased all three types of books. a) how many of the customers surveyed purchased only mysteries? b) how many purchased mysteries and science fiction, but not romance novels? c) how many purchased mysteries or science fiction? d) how many purchased mysteries or science fiction, but not romance novels? e) how many purchased exactly two types of books?

Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.