Jon and lexi are playing a marble game. according to their rules, 4 point are awarded for each red marble collected and 3 point are awarded for each blue marble collected. which expression represents jon's total score if he has r red marbles and b blue marbles? (1 point)
4r − 3b
2r − 3b
4r + 3b
7rb

1. 34

2. 268

3. x=14.4

step-by-step explanation:

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