Number the triangles+D
Algebra
Level
pending
1 triangle is equal to 30
so what is the number for (D)
100 triangles+1.5x8.9=5000-2500-2500+1-300+298+1+D<
3 013.04
3013.35
2013.12
115.07
7912791.9
7017.53
918.8
8791.76
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1 solution
3013.35 use the calculator