Plz! you rode your bicycle a mile and a half to school. then you rode to a friend's house. altogether you rode 2 1/10 miles. write and solve an equation to find how far it is from school to your friends house.

Suppose you are choosing a 6-digit personal access code. this code is made up of 4 digits chosen from 1 to 9, followed by 2 letters chosen from a to z. any of these digits or letters can be repeated. find the total number of personal access codes that can be formed. 492,804 341,172 39,917,124 4,435,236