Elvis is trying to get fit for a Marathon. He wants to run 45km. Each week. This week he has runs of 7.5km,10.25,6.4km 12.8 km. How many more Kilometers does he need to run to reach his goal for the week

Hector and alex traded video games. alex gave hector one fourth of his video games in exchange for 6 video games. then he sold 3 video games and gave 2 video games to his brother. alex ended up with 16 video games. how many video games did alex have when he started?

If x+y+z=0 what is the value of [tex] {x}^{3} + {y}^{3} + {z}^{3} [/tex]

Is experimental probibilty the same as the observed frequency in math? i need the answer asap!