Ketisha is practicing for a marathon by running around a track that is 440 yards long yesterday she ran around the track 20 times how many miles did she run

Which of the following is a function? a.) {(-2, -4/5), (-1,-,,-1)} b.) {(-2,,1/,3/,1)} c.) {(-22)} d.) {(-21)}

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 23 = 10x a. -1.93, 11.93 b. 1.93, -11.93 c. 1.93, 11.93 d. -1.93, -11.93

Hi, can anyone show me how to do this problem? 100 points for this. in advance