All cds in the store were marked either $12 or $10. the counter at the exit of the store says that 500 people left with cds during the sale, and the cash register contains $5750 from the days sales. maria wrote a system of equations for the number of $10 cds and the number of $12 cds

since we know that the two functions are equal, f (x) = g

(x), therefore when we equate the two equations the result should be similar to

3x = x – 4:

a. f(x) = 3x, g(x) = x – 4

equating the two functions:

3x = x – 4             (correct)

so we now got our answer (a)

step-by-step explanation:

tangent z: 4/3

cosine y: 4/5

cotangent y: 4/3

2/3=10/15

1/5=3/15

10+3=13/15

2 13/15 is the answer