What is the number of sides of a regular polygon whose exterior and interior angles are in the ratio 1:5?

The following graph shows the consumer price index (cpi) for a fictional country from 1970 to 1980? a.) 1976 - 1978b.) 1972 - 1974c.) 1974 - 1976d.) 1978 - 1980

If you prove that ∆wxz is congruent to ∆yzx, which general statement best describes what you have proved?

Robin spent 25% more time on his research project than he had planned he’s been an extra h ours on the project which of the following expressions could represent the number of hours rob actually spent on the project