Acombination lock has digit from 0 to 39 on it . three numbers are required to open the lock. how many combinations are possible if you cannot have the same digit twice in a row

Need ! easy 6th grade work! i will put as much points as i can! you so much! i’m learning this in math and it’s soo

The triangles are similar. what is the value of x? show your work.

The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212