The function f(x)=4x-20 represents the profit of a candy fundraiser bands students are starting in February. Evaluate the function for f(120).

(least common multiples) the answer that i had in the 1st step was lcm of airline tickets sold=72. idk if that even matters but just in case. ! three co-workers are busy selling airline tickets over the phone. in an 8-hour day, charles can sell 8 airline tickets, ann can sell 9 airline tickets, and michelle can sell 6 airline tickets. step 2 of 2: what is the smallest number of 8-hour days needed for each of them to achieve the same number of sales? it takes charles . it takes . it takes .

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

I'm confused on this could anyone me and show me what i need to do to solve it.