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sahaitong2552
06.07.2019 •
Mathematics
Sal brought $7.50 to the fair and karma brought $8.75 to the fair. which expression shows the total amount they brought? a) $8.75 - $7.50 = $16.25 b) $8.75 + $7.50 = $15.25 c) $8.75 - $7.50 = $1.25 d) $8.75 + $7.50 = $16.25
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Ответ:
Ответ:
=w+7+2w
=3w+7
2) 4c^2+6c-3c^2-2c-3
=c^2+6c-2c-3
=c^2+4c-3
3) z^3+5z+3z^2+1-4-2z^2
=z^3+z^2+5z+1-4
=z^3+z^2+5z-3