Given right triangle ABC with altitude BD drawn to hypotenuse AC . If AC =23
And Dc =4 what is the length of BC

100 points, hi, i’m not sure how to get the equation from the graph and table.

Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?

Mat bought a phone for $100. he has to pay $30 per mouth. if he has paid $640 in total, how many mouth has he had the phone?