Write the folowing transformations using matrix multiplication.
a. l(x, y) = (3x − 2y, 4x − 5y)
b. l(x, y) = (6x + 10y, −2x + y)
c. l(x, y) = (25x + 10y, 8x − 64y)
d. l(x, y) = − y, −2x + 3y)
e. l(x, y) = (10x, 100x)
f. l(x, y) = (2y, 7x)

In a singing competition, there are 150 participants. at the end of each round, 40% of the participants are eliminated. how many participants are left after n rounds?

Problem number 26 of the rhind papyrus says: find a quantity such that when it is added to of itself the result is a 15. the modern day equation that models this problem is x + x = 15. what is the solution to the equation? x = 10 x = 12 x = 15 x = 30

Given the equation    = 5, solve for x and identify if it is an extraneous solution