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OlgaM077 [116]
3 years ago
12

Please help with explanation and show work :)

Mathematics
1 answer:
ANEK [815]3 years ago
3 0
3. A=bh/2
2A=bh
h=2A/b.

8. Dy-Cx=E
Dy=E+Cx
y=(E+Cx)/D
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The whole bill is $31.99 that is 100%. You can use mental math to determine exatcly 15% from $31.99:

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3. 5% is half of 10%, then 5% from $31.99 is $3.199:2=$1.5995.

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