In a certain country, a telephone number consists of seven digits with the restriction that the first digit cannot be 6 or 1. Repetition of digits is permitted. How many distinct telephone numbers are possible?

20 points! asap! a is known to be 6,500 feet above sea level; ab = 600 feet. the angle at a looking up at p is 20°. the angle at b looking up at p is 35°. how far above sea level is the peak p? find the height of the mountain peak to the nearest foot. height above sea level =

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

How do the number line graphs of the solutions sets of -23 > x and x-23 differ?