4. Which of the following number of pairs have the same ratios? 8 and 3; 56 and 21; 104 and 36; 896 and 336.

Write the following as a base and exponent

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.

Olga bought a new skirt that cost $20. sales tax is 5%. how much did olga pay, including sales tax? 7.