Alisha bought a collection of 500 old pennies. she chose 20 pennies from the collection and recorded their dates. seven pennies had dates earlier than 1980. what is the best estimate of the percent of pennies in alisha's collection that have dates earlier than 1980? enter your answer in the box.

Which table represents a linear function? i'll give brainliest to first answer ^'^

Many newspapers carry a certain puzzle in which the reader must unscramble letters to form words. how many ways can the letters of emdangl be arranged? identify the correct unscrambling, then determine the probability of getting that result by randomly selecting one arrangement of the given letters.

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d? are he re