Fill in the blank with a number to make the expression a perfect square.
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Find the solution of system of equation y= x-4 y=4x+2

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?

Tabby sells clothing at a retail store, and she earns a commission of 6.25% on all items she sells. last week she sold a pair of jeans for $32.50, a skirt for $18.95, and 2 blouses for $14.95 each. what was tabby's total commission? a $4.15 b $5.08 c $81.35 d $348.60