Stella predicted that she would sell 56 sculptures. She actually sold 30 sculptures. What are the values of a and b in the table below? Round to the nearest tenth if necessary. Percent Error

Item: Sculptures
Approximate value 56
Exact value 30
Error
Absolute error
Ratio: a
Percent error : b

answer choices :
(A)a = StartFraction 26 over 56 EndFraction; b = 46.4 percent
(B)a = StartFraction 30 over 56 EndFraction; b = 53.6 percent
(C)a = StartFraction 26 over 30 EndFraction; b = 86.7 percent
(D)a = StartFraction 26 over 26 EndFraction; b = 100 percent

he used the algebra tiles correctly.

step-by-step explanation:

given : 3x(2x-1)

solution :

since he used algebra tiles .

armando's solution is the same in the solution shown in figure

as he distributed 2x into x and x and wrote them vertically

and also write   -1 vertically

and 3x into x and x and x and wrote it horizontally

performing the multiplication in the algebra tiles we get

and solving the given expression :

3x(2x-1)

since solving the expression using tiles   and solving the expression algebraically we get the same answer

thus   we can choose the first statement as the answer to this problem which is "he used the algebra tiles correctly".

boxplot

answer:   2 multiplied by x =24

step-by-step explanation:

is there any other information given for this problem? this is not enough information.