How do you write 0.000000000000067240 in scientific notation?

Abcd is a parallelogram. the diagram is not drawn to scale. if m

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212