It is expected that 563 quadrillion thermal units of Btu (British thermal units) of energy will be consumed worldwide in 2015. In 2003, worldwide consumption was 421 quadrillion Btu. What is the expected rate of change in consumption from 2003 to 2015? A about 0.069 quadrillion Btu per year
B about 11.83 quadrillion Btu per year
C about 142 quadrillion Btu per year
D about 0.085 years per quadrillion B

Dropping less than two inches per mile after emerging from the mountains, a river drains into the ocean. one day's discharge at its mouth, 5.6 trillion gallons, could supply all of country a's households for seven months. based on this statement, determine how much water an average household uses each month. assume that there are 100 million households in country a. country a uses approximately nothing gallons per household per month.

At which value in the domain does f(x) =0?

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base