I think you are missing part of the quaetion there are no triangles.
Answer:
Your answer.
Equation is D
R = 622
Y = 410
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Step-by-step explanation:
Answer:

Note:
Three-tenths reapeating is 
Answer:
firstly covert it like 7 1/4
= 4x7+1 = 29 so 29/4
Step-by-step explanation:
and then find difference by making denominators same
$6.24. This is because 1.44 / 6 = 0.24, and 0.24 x 26 = 6.24.