Combine like terms to create an equivalent expression. {-\dfrac{2}{3}a+\dfrac56a-\dfrac16} −
3
2

a+
6
5

a−
6
1

minus, start fraction, 2, divided by, 3, end fraction, a, plus, start fraction, 5, divided by, 6, end fraction, a, minus, start fraction, 1, divided by, 6, end fraction

Write 5 numbers that round to 740 when rounded to the nearest 10

What's the difference between: x≥0 and nonnegative integer. ?

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?