Triangle j k l is shown. angle j k l is a right angle. the length of j k is 12 and the length of k l is 5.
given right triangle jkl, what is the value of cos(l)?

five-thirteenths
five-twelfths
twelve-thirteenths
twelve-fifths

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?

Asmall book publisher knows that 26 books weigh 41 lbs. how much do 40 books weigh?

Last month, leonhard euler's watch kiosk at the mall had total sales of $9,489. merchandise totaling $225 was returned. the goods that were sold cost leonhard euler's $5,481. operating expenses for the moth were $992. what was the gross profit on sales?