-5- (Select all that apply.) -10 -5 -2 0 4 10
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Aswim teacher sells lesson packages. the best deal has the highest ratio of lessons to total cost.swim lesson packagesnumber of lessons total cost$10$4010 1 $8015$80which package is the best deal? l lesson for $105 lessons for $4010 lessons for $8015 lessons for $80mark this and returnsave and exit

15 and 14.7 are 1 apart, so 15 – 14.7 must be 1.

Which of the following parabolas opens down?