IF y varies inversely as x and y=10 when x=5 find y when x=25

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?

A(1,1) b(-3,0) c(-4,-1) d(3,-2) drag it to correct position

The experience c-0.25c can be used to find the cost of an item on sale for 25% off which expression beloit equivalent to c-0.25c