1. Jenny spent Php. 185.35 for a box of chocolates and Php. 15.40 for a notebook. She gave her sister Php. 135.00. The money she had left was Php. 142.25. How much did she have at first? Show a solution and label answer.

Asimple random sample of size nequals14 is drawn from a population that is normally distributed. the sample mean is found to be x overbar equals 70 and the sample standard deviation is found to be sequals13. construct a 90% confidence interval about the population mean

Which expression is equivalent to sq-80

Which graph represents the parent function of y=(x+2)(x-2)