Ella wants to estimate the product (3.6)(7.8). which expression shows each factor rounded to the nearest whole number?

What is another way to express 36 +32

Which is the solution to the inequality? 2 3/52 1/15 b< 3 2/15 b> 3 2/15

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?