Alec is building a rectangular picture frame. he wants the sum of the length and width to be 12 in. and the perimeter to be 30 in. use the system of equations to determine how many possibilities there are for the length. L + W = 12 2L + 2W = 30

Geometry. i need step by step explanation on how to do each problem.

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?

Select all the correct locations on the table. consider the following expression. 76.493 select "equivalent" or "not equivalent" to indicate whether the expression above is equivalent or not equivalent to the values or expressions in the last column equivalent not equivalent 343 equivalent not equivalent 49 78.498 78.498 75.493 equivalent not equivalent 75.7 equivalent not equivalent