If f(x) = 4 - x? and g(x) = 6x, which expression is equivalent to (g- 1)(3)?

If you shift the linear parent function, f(x)=x, up 13 units, what is the equation of the new function?

Out of 50 students surveyed, 16 have a dog. based on these results, predict how many of the 280 students in the school have a dog.

Present age of man is 45 years, 5 years back his age was 4 times age of his son what is present age of his son?