∠e and ∠f are vertical angles with m∠e=9x+12 and m∠f=3x+24. what is the value of x? enter your answer in the box.

The recommended daily calcium intake for a 20-year-old is 1,000 milligrams (mg). one cup of milk contains 299 mg of calcium and one cup of juice contains 261 mg of calcium. which of the following inequalities represents the possible number of cups of milk m and cups of juice j a 20-year-old could drink in a day to meet or exceed the recommended daily calcium intake from these drinks alone?

Summarize the work of famous environmental scientists of the past.

Scientists observed a rock stratum with fossil. if mollusks evolved before arthropod, where will their fossils be found.