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Sagot :
Calculating f(7)
f(7) = 2.7 + 12
f(7) = 14 + 12
f(7) = 26
He/She needs 26 - 10 = 16 dollars
f(7) = 2.7 + 12
f(7) = 14 + 12
f(7) = 26
He/She needs 26 - 10 = 16 dollars
[tex]x=7\ \ \ \ \Rightarrow\ \ \ f(x)=2\cdot7+12=14+12=26\ [\$]\\\\\$26-\$10= \$16\\\\Ans.\ Makayla\ need\ \ \ \$16.[/tex]
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