Remember order of operations (PEMDAS):
3•(11-1/2)
3•10.5
31.5
Answer:
Step-by-step explanation:
(2n - 3)(5n + 6) = 2n*(5n + 6) -3*(5n +6)
=2n*5n + 2n*6 -3*5n + (-3)*6
=10n² + 12n - 15n - 18
= 10n² -3n - 18
For part a it’s sal will leave a $20 tip for part b sals food is $78.22 including tax and tip
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