Write a function using function notation to describe each situation. find a reasonable domain and range for each function.

1) mary has already sold $55 worth of tickets to the benefit concert. she has 3 tickets left to sell at $7 per ticket.

hi,

i'm 75% sure the answer is 1,1 to both lines.

have a great day

geometry: triangles

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call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584