9514 1404 393
Answer:
$105
Step-by-step explanation:
The thicker wall takes 345 -205 = 140 more blocks. Each of those costs $0.75, so the added blocks will cost ...
140 × $0.75 = $105
The thicker wall will cost $105 more.
$1040.00
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Raphael paid $624
624/.60= 1040.00
6/10 is the fraction and 60 percent
