Can be two variations
(xy)^3
3x^2y^3
Both are correct it’s just a different way of writing it
Answer:
a=9
Step-by-step explanation:
a^2+b^2=c^2
a^2+5.6^2=10.6^2
a^2+ 31.36=112.36
-31.36 -31.36
a^2=81
a=
a=9
Let the cost of each drink is $x and the cost of each hot dog is $y.
According to the given data, 3 drinks and 2 hot dogs cost $4.80. In equation form, we can write it as:

1 drink and 1 hot dog costs $2.00. In equation form, we can write it as:


Using this value of x in first equation, we get:

Thus the cost of one hot dog is $1.20
Answer:
Value of b is all the numbers.
All the numbers will satisfy the value of b.
Step-by-step explanation:
4b + 21 = b + 3 ( b + 7 )
4b + 21 = b + 3b + 21
4b + 21 = 4b + 21