Is f(x)= |x| +2 continuous at x=0 or differentiable at x=0?

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

Write the slope-intercept form of the line that passes through the point (1, 0) and is parallel to x - y = 7. t

Mario has $14.35 left in his wallet. he spent $148.43 for tablecloths. then, he spent $92.05 for napkins. how much money did mario have in his wallet to start with?