Write an expression that is equivalent to each original expression. Use the expressions in the box below. Not all expressions will be used.
7(6 + y)
6y + y
(XX 6) + y2
60%+7)
6y +7
( X 6) + (x7)
Equivalent Expression
Original Expression
(7 X 6) + (7 Xy)
y (6 + 7)
(6 Xy) + (6 X 7)
y(6 + y)

Marcus needs to rewrite f(x) = x2 + 6x + 4 in vertex form.

Luke started a weight-loss program. the first week, he lost x pounds. the second week, he lost pounds less than times the pounds he lost the first week. the third week, he lost 1 pound more than of the pounds he lost the first week. liam started a weight-loss program when luke did. the first week, he lost 1 pound less than times the pounds luke lost the first week. the second week, he lost 4 pounds less than times the pounds luke lost the first week. the third week, he lost pound more than times the pounds luke lost the first week.

What ia the sum if the first 7 terms of the geometric series