The inequality x^2 + 12x + 35>_0 has two critical points and three possible intervals for solutions. Choose each set of possible test points for the three intervals.

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.

In the 30-60-90 triangle below side s has a length of and side r has a length

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.