Asmall technology firm can either produce computer keyboards or mice. the company has a limited number of workers, so it can only spend 400 hours per week making these products. the company makes a profit of $8 per keyboard and $5 per mouse. if each keyboard requires four hours of labor, and each mouse takes two hour of labor, which of the following is true about the number of hours that can be spent making keyboards (k) and mice (m)?

Solve the problem by using a venn diagram a group of students were surveyed about their taste in music.they were asked how they like three types of music: rock, country western and jazz.the results are summarized below: no one dislikes all three types of music.six like all three types of music.eleven don’t like country western.sixteen like jazz.three like country western and jazz, but not rock.six don’t like rock.eight like rock and country western.seven don’t like jazz.how many students were surveyed?