Kevin has $1,427 in a savings account. his brother has saved an amount with the 4 that is 1/10 the value of the 4 in kevin's account. how much could his brother have in his savings account?

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?

Use the distributive property -7(-2x+u-2)

What are the domain and range of f(x)= -log5(x+2)