30. modeling with mathematics you earn
$10 per hour working as a manager at a grocery store.
you are required to work at the grocery store at least
8 hours per week. you also teach music lessons for
$15 per hour. you need to earn at least $120 per week,
but you do not want to work more than 20 hours
per week.

how do i graph and write a system of linear inequalities that represents the situation?

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?

Susie wants to take her friend out for lunch. she wants to spend $9.75 each person. how much will she spend in all.

You are a male who just graduated from college with a bachelor's degree. you have a job paying $50,780.00/yr. a. how does your salary compare to the yearly median earnings for a male with a bachelor's degree? b. what is the difference between the yearly median earnings for a male with a bachelor's degree compared to a male who does not attend college after earning a high school diploma?