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Solving Functions: Only Integer Values

GMAT-DFEJNF

Say $B$__$A=$ $ A+B^2 $ where A and B only take on integer values from $1$ to $5$.

If$ A$$B=7$, what is $5$$(1$__$B)$?

A

$14$

B

$28$

C

$29$

D

$30$

E

$35$