Leo went to a printing shop to print shirts. the first 20 shirts printed cost $12 each, but for every additional shirt printed is $9. in total, he paid $429. how many shirts did he print?

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x=0.8898305 is the answer to that equation

35/2 is it i think maybe

graph #4 (last graph) depict the function   f(x)= -m(x-d)^1/5 i

step-by-step explanation:

we know that

m=slope

but in this function slope is -m that means slope is decreasing and it is decreasing by 1/5 points down the x-axis.

which is shown in graph four

a decreasing slope down x-axis by 1/5 points.

hence 4th graph is the right option for this.