An electronics store makes a profit of $72 for every standard cd player sold and $90 for every portable cd player sold. the managers target is to make at least $360 a day on sales from standard and portable cd players. write an inequality that represents the numbers of both kinds of cd players that can be sold to tech or exceed the sales target. let s represent the number of standard cd players and p represent the miner of portable cd players.

Will mark 50 show all what is the solution to the system of equations? use the substitution method and show your work. -5x+y= -3 -15 x+3y=7 explain what your answer in part (a) tells you about the association of the lines in this system.

Write each rational number in the form a/b, where a and b are integers. 1. 5 1/6 2. -12

Two groups of students were asked how many hours they spent reading each day. the table below shows the numbers for each group: group a 1 2 1 1 3 3 2 2 3 group b 3 2 3 2 2 2 1 1 2 based on the table, which of the following is true? the interquartile range for group a students is 0.5 less than the interquartile range for group b students. the interquartile range for group a students is equal to the interquartile range for group b students. the interquartile range for group a employees is 0.5 more than to the interquartile range for group b students. the interquartile range for group a employees is 1 more than the interquartile range for group b students.