The speed of a car in mph varies directly with the speed of a car in kph. The speed of 75 mph is equivalent to 120 kph. How many kph is 45 mph?

please help asap !

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)

5x−4≥12 or 12x+5≤−4 can you with this problem

The customer price index(cpi), which measures the cost of a typical package of customer goods,was 208.8 in 2011 and 244.1 in 2016.let x=11 corresponding to the year 2011 an estimate to cpi into 2013 and 2014. assume that the data can be modeled by a straight line and the trend to continue idenfinitely.use data points to find such a line and then estimate the requested quantities