Ab and c share the rent in a ratio of 4: 3: 2. the rent is ? 216. how much does a pay?

Yesterday i ran 5 miles. today, i ran 3.7 miles. did my percent increase, decrease or is it a percent error? plz i need

Let f(x) = 3 − x . find the average rate of change of f(x) from x = a to x = a + h and simplify your answer so that no single factor of h is left in the denominator.

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?