2 answers:
The exponent for that would be 13^3.
If the answer is incorrect, then i am sorry.
Answer: 13^4
Step-by-step explanation:
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The Answer is 4 10 books for $.40, 5 books for $.80, and 8 books for $.50
The answer is 21
21x3=63 and 21x4=84
Perimeter of a rectangle = 2(l+w)
Length = 4-7(3x+4y)
=4-21x-28y
Width = 3x(-2y)
=-6xy
Perimeter
=2(4-21x-28y-6xy)
Answer = 8-42x-56y-12xy
Answer:
141.625
Step-by-step explanation:

Answer:
b
Step-by-step explanation:
y is x + half of x so 12 + 6 is 18