\dfrac{1}{5}(6+3+1)^2 = 5 1 ​ (6+3+1) 2 =start fraction, 1, divided by, 5, end fraction, left parenthesis, 6, plus, 3, plus, 1, right parenthesis, squared, equals (any help!?!?!?!?

Agreeting card company can produce a box of cards for $7.50. if the initial investment by the company was $50,000, how many boxes of cards must be produced before the average cost per box falls to $10.50?

Find the roots of the equation below. x^2 - 6 + 9 = 0

Consider the sequence below. 3 , 1 , 1/3 , 1/9 , select the explicit function which defines the sequence.