What type of system is used by a steam engine?

a steam engine uses fuel to heat water into steam which drives a turbine, thus converting heat into mechanical energy. the steam engine is a type of system.

The green family is a family of six people. they have used 4,885.78 gallons of water so far this month. they cannot exceed 9,750.05 gallons per month during drought season. write an inequality to show how much water just one member of the family can use for the remainder of the month, assuming each family member uses the same amount of water every month.

An apartment has a replacement cost of $950,000 and contents valued at $1,450,000. it has a classification of a and a territory rating of 3. find the annual premium a) $10,185 b) $9,230 c) $3,155 d) $13,830

What is the best approximation for the area of a circle with a radius of 4 m ? use 3.14 to approximate pi