Write an inequality for the word sentence: k is less than zero

Given the function f(x) = 3x + 1, evaluate f(a + 1). a. 3a + 1 b. a + 2 c. 3a + 4

Write the system of equations represented by the matrix. 0 1 2 4 -2 3 6 9 1 0 1 3

Agreeting card company can produce a box of cards for $7.50. if the initial investment by the company was $50,000, how many boxes of cards must be produced before the average cost per box falls to $10.50?