The first five terms in a pattern are shown below
-0.5, -0.25, 0, 0.25, 0.5, . .
if the pattern continues, which expression can be used to find the nth term?

Sal is tiling his entryway. the floor plan is drawn on a unit grid. each unit length represents 1 foot. tile costs $1.35 per square foot. how much will sal pay to tile his entryway? round your answer to the nearest cent.

The perimeter of a triangle is 69 cm. the first is 5 cm shorter than the second side. the third side is twice as long the first side. find the length of each side

Which rule describes the composition of transformations that maps △abc to △a”b”c