Remember

note that if

is a perfect cube then

is also a perfect cube when c is an integer

so if a number is a perfect cube then the power must be divisible by 3
8 is not divisible by 3
24 is divisible by 3
26 is not divisibley by 3
64 is not divisible by 3
the perfect cube is y^24
He is incorrect because he multiplied the bases.
Well $ 4.50 for the 24 pack.$2.50 for the 4 for 10,12 pack and the last is $3.00.
Take the root of both sides and solve.
Answer:
The first picture is B and the second one is (0,-3)