With the summer approaching, Mya decides to start a small lawn mowing business in her town. The initial cost for the lawnmower and other fixed expenses
is $450. She determines it will cost her $6 per lawn for gasoline and maintenance.
Mya decides to charge customers $20 per lawn.
Part A
Create functions to model the expenses and the revenue for Mya's lawn mowing
business.
PART B
Create a linear profit function to model the profits for Mya's lawn mowing
business.
PART C
How many lawns will Mya have to mow in order to break even?
PART D
Mya wants to purchase a bicycle that costs $420. How many lawns will Mya have
to mow, in total, in order to make enough money to pay for the bicycle?

Asays "we are both knaves" and b says nothing. exercises 24–31 relate to inhabitants of an island on which there are three kinds of people: knights who always tell the truth, knaves who always lie, and spies (called normals by smullyan [sm78]) who can either lie or tell the truth. you encounter three people, a, b, and c. you know one of these people is a knight, one is a knave, and one is a spy. each of the three people knows the type of person each of other two is. for each of these situations, if possible, determine whether there is a unique solution and determine who the knave, knight, and spy are. when there is no unique solution, list all possible solutions or state that there are no solutions. 24. a says "c is the knave," b says, "a is the knight," and c says "i am the spy."

Solve the problem. a student earned grades of c, a, b, and a in four different courses. those courses had these corresponding numbers of credit hours: 4, 5, 1, and 5. the grading system assigns quality points to letter grades as follows: a = 4, b = 3, c = 2, d = 1, and f = 0. compute the grade point average (gpa) and round the result to two decimal places. 3.40 3.50 8.75 2.18

Y+ 2/y is it a polynomial in one variable or not? and if so, why?