Acertain number is subtracted from 20. the result multiplied by 3 is equal to 45. what is the number?

Asurvey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand x aspirin.how many doctors use brand x aspirin

`if you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain. ''.

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2