The mapping diagrams below show 4 different relationships between input and output
values. How many of the mapping diagrams represent functions?

Which transformations could have occurred to map △abc to △a"b"c"? a rotation and a reflection a translation and a dilation a reflection and a dilation a dilation and a rotation

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

Olga bought a new skirt that cost $20. sales tax is 5%. how much did olga pay, including sales tax? 7.