15. Joe wants to buy not more than 10 books at the book store. Comic book cost 70 pesos each and fiction books cost 80 pesos each. He has 200 pesos worth of Birthday money. Which of the following linear inequalities correctly model this situation?
A.X + y < 10,70x + 80y S 100
B. x + y 2 10 , 70x + 80y > 100
C. x + y < 10, 70x + 80y > 100
D. x + y > 10, 70x + 80y < 100
16. Identify the type of correspondence shown in the given table below.
-2 -2 2 2
15 13 18 11
A. one-to-one
B. one-to-many
C. many-to-one
D. many-to-many
17. A type of correspondence which any or two elements of the domain are mapped to the same element in the range.
A. one-to-one
B. one-to-many
C. many-to-one
D. many-to-many
18. The following set of ordered pairs represents a function, which of the following is NOT a function?
A. {(-3,12).(-2,12),(-1,12)
B. {(5,-5).(-5, -5),(15,-5)}
C.{(-3,12),(-3,-6),(-3,-2)}
D. {(-8,-8),(-4,-4), (-7, -7)}
20. Which of the following does NOT represent a function?
A. The relation of the students to his /her LRN.
B. The relation of a mother to her children.
C. The relation of a car to a license plate.
D. The relation of a person to the toothbrush he/she uses.

plss Lang kung hindi mo alam yung sagot wag Mona sagutan

[tex]\begin{gathered}\large\begin{array}{|c|c|} \hline \tt \red{Decimal \; in \; words }\tt & \tt \red{Decimal \; in \; symbol}\\\hline \sf 1.) \: Six \; tenths \qquad \qquad \qquad &\tt\purple{0.6} \\\hline \sf 2.) \: Nine \; tenths \qquad \qquad\hspace{1em} \: &\tt\purple{0.9} \\\hline \sf 3.) \: Ten \; hundredths \qquad\hspace{1em} \: \: &\tt\purple{0.10} \\\hline \sf 4.) \: Nineteen \; hundredths \hspace{1em} \hspace{1em}&\tt\purple{0.19} \\\hline \sf 5.) \: Twenty-five \; hundredths &\tt\purple{0.25} \\\hline\end{array}\end{gathered} [/tex]

haha