It is 18because you have to count the blocks
Answer:
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Step-by-step explanation:
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A=3B
4.35A+5.40B=780.95
Substitute 3B into A for the second equation:
4.35(3B)+5.40B=780.90
13.05B+5.40B=780.90
18.45B=780.90
B=42.33
Plug into equation 1:
A=3B
A=3(42.33)
A=126.98
I honestly really do not know so sorry if it is wrong..i would say -0.25 sry if wrong
