Lol help me with some math stuff pls

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Unc special program for high school students that pays them three $300 for joining and an additional $200 per week h& m pay students in according to the function y equals 300+240 x where why is the total paint and x is the number of weeks but love your peas students according to this graph primark uses the pay schedule according to the following table which stores pay has the greatest rate of change

Which is an equation for the nth terms of the sequence 12,15,18,21

Solve 2x2 + 8 = 0 by graphing the related function. there are two solutions: . there are no real number solutions. there are two solutions: 2 and -2