Dave and steve are 700 meters apart from each other on a straight path. both start walking toward each other and meet each other after 7 minutes. dave covers a distance of x meters in one minute, which is 20 meters less than the distance steve covers in a minute. which of these equations can be used to find the rate at which steve and dave walk?

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?