Prem earns Rs. 16000 a month. He spends half of his income on food, three - tenth of the remaining income on house rent and Rs. 2050 on education of his son. How much money is left with him?

The graph below represents the number of dolphins in a dolphin sanctuary. select all the key features of this function.

Which is the equation of a line perpendicular to the line with the equation 3x+4y=8

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables