On a scale drawing a doll house is 12 inches tall the scale factor is 1/6 find the height of the house

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.

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?