This equals [f(3) - f(1)] / [3-1]
= 3^2 + 6(3) + 10 - (1^2 + 6(1) + 10) / 2
= (37 - 17) / 2
= 10 Answer
Answer: yes your correct it is c
Step-by-step explanation:
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Exp.
100 $;
<span> discount of 20% => 80$;
</span> discount of <span>12%</span>% => 80 - 80*(12/100) = 71.4 $;
100 - (x/100)*100 = 71.4 => x = 29.6 => a single discount of 29.6%;