15) The order of magnitude cost estimate is used when:
A) Ballpark estimates are not considered accurate enough.
B) Historical data are readily available.
C) Information or time is scarce.
D) Parametric estimation has already been performed.

2x - 20 = 32 20 - 3x = 8 6x - 8 = 16 -13 - 3x = -10

Polygon hh is a scaled copy of polygon gg using a scale factor of 1/4. polygon h's area is what fraction of polygon g's area?

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