Josh visits his parents every eight days. hey visits his brother every twelve days. if he visited his parents and brother today, how many days until josh visits both his parents and his brother again on the same day?

you don't have to tell me the answer just tell me the strategy i need to use. but if you want you can.

International calls require the use of a country code. many country codes a 3-digit numbers. country codes do not begin with a 0 or 1. there are no restrictions on the second and third digits. how many different 3-digit country codes are possible?

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

which of the following sets of data would produce the largest value for an independent-measures t statistic? the two sample means are 10 and 20 with variances of 20 and 25 the two sample means are 10 and 20 with variances of 120 and 125 the two sample means are 10 and 12 with sample variances of 20 and 25 the two sample means are 10 and 12 with variances of 120 and 125