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Which of the following statements must be true?select all that apply.

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

Aretha wanted to gather data about the cost of local bowling leagues in her area. she plotted the data and determined that the average bowling league costs consist of a one-time registration fee and a monthly fee modeled by the equation y = 15x + 20. identify and interpret the y-intercept in this model. the y-intercept is 20. this is the cost per month. the y-intercept is 20. this is the cost of registration. the y-intercept is 15. this is the cost of registration. the y-intercept is 15. this is the cost per month.

This graph shows which inequality? a ≤ –3 a > –3 a ≥ –3 a < –3