Joseph found a cell phone and wants to return it to its owner. The phone requires a 4-digit code to gain access to the contact list. What is the probability that Joseph will be able to unlock the phone on his first attempt? (Assume that the numbers cannot be used more than one time.)

225/100 of last years cost. write each fraction as a decimal and as a percent

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?

Explain how you could use the interactive table to tell if sets of points are on the same line. math 8