Simplify the expression. Write your answer without negative exponents. Whenever an exponent is negative or zero, assume that the base is not zero.(x-7)-3
A. 
B. -x10
C. x21
D. 
Answer: C
Mathematics
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Add or subtract and write answer in lowest terms.
+ 
A. 
B. 
C. 
D. 
Mathematics
Solve.Find the dimensions of a rectangular garden with perimeter 
and area 
A. 10 yd by 11 yd B. 20 yd by 11 yd C. 10 yd by 22 yd D. 20 yd by 22 yd
Mathematics
Simplify.(3x4y2)2(3x8y4)2
A. 9x12y12 B. 9x24y12 C. 81x16y10 D. 81x24y12
Mathematics
Evaluate the radical function at the given value of the variable.f(x) = 
; find f(4).
A. 5 B. 4 C. 3 D. 2
Mathematics