Given a regular language l, let l'= {x | there exist y = a1 a2 .. an in l, x = a2 a4.. show that l' is regular.

The great length of north america causes the climate to be varied. true false

Ulia is planning to attend the same private four-year college her parents attended. she wants to save at least $18,000 in four years to contribute to her college education. which monthly deposit amounts can julia use to achieve her goal? check all that apply.

Me ! evelyn is a manager in a retail unit. she wants to prepare a report on the projected profit for the next year. which function can she use? a. pmt b. round c. division d. what-if analysis