Denise buys flour in bulk for her bakery. the cost per pound of flour is graphed below. which best describes the function of the cost of flour ever the interval [0,15]?

a, a piece-wise function with separate pieces of linear functions only

b, a step-function for the entire interval

c, a single linear function with a three point of discontinuity

d, a piece-wise function with separate pieces of linear and step-functions

Solve x+3y=6 and 4x-6y=6 by elimination . show work !

Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.

Which has the greater energy, light of wavelength 519 nm or light with a frequency of 5.42 x 10^8 sec^-1?