Express the mass of these planets and moons in both standard and scientific notation. If necessary, round the numbers so that the first factor goes only to the hundredths place. Earth’s moon Mercury Venus Jupiter Saturn Uranus Neptune Phobos Ariel Titan

Two parallel lines are crossed by a transversal. what is value of x

What other information do you need to prove triangle dac=bca by asa

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?