Mary charges a flat fee of $5.00 and $2.50 for every 1/4 hour she works what is the hours she worked if she earned 35 dollars

What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid? explain your reasoning.

You dug a hole that was 8 feet deep. after taking a short break, you dug down 3 more feet in the same hole. when finished digging, a tractor accidentally filled the hole with 4 feet of dirt. how deep is your hole now?

Sioux co. replaced the roof on its existing building, therefore increasing the building's life by 10 years. the cost of the roof is considered a(n):