Answer: Package B is least expensive; Will save $5
Step-by-step explanation:
Package A
$200 for 5 lesson=$40/lesson
Package B
$350 for 10 lesson=$35/lesson
35<40
Package B is least expensive
-------------------------------------------------------
40 (Package A)- 35 (Package B)
=$5
In total they're 9 people and 3 boys which would mean it would be 3/9
She bought it at a 15% discount because 15 percent of 40 is 6 and 40-6=34
I believe the answer is A.
Multiply the top and the bottom by the conjugate of the bottom.
So, multiply the given problem by (6+sqrt 13). This eliminates the radical from the bottom.
