Plz help me, I am terrible in math

Write each fraction as an equivalent fraction with a denominator of 120then write the original fractions in order from samllest to largest

The average number of vehicles waiting in line to enter a parking lot can be modeled by the function f left parenthesis x right x squared over 2 left parenthesis 1 minus x right parenthesis endfraction , where x is a number between 0 and 1 known as the traffic intensity. find the rate of change of the number of vehicles waiting with respect to the traffic intensity for the intensities (a) xequals0.3 and (b) xequals0.6.

Select the two pairs of figures that are similar.