A denominator is 0.4 and a numerator of 1.5 is equivalent t what fraction?

Zahra was given two data sets, one without an outlier and one with an outlier. data without an outlier: 15, 19, 22, 26, 29 data with an outlier: 15, 19, 22, 26, 29, 81

Me! 50 points! why does when we come home, our door is unlocked and there is grease on the door knob, me solve this , and i don't know what category this goes under

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)