Seven less than four times a number equal 13

In the triangles, bc =de and ac fe.if the mzc is greater than the mze, then ab isdfelth

If a 36 inch yardstick casts a 21 foot shadow, how tall is a building whose shadow is 168 feet? what is the scale factor

Sue's average score for three bowling games was 162. in the second game, sue scored 10 less than in the first game. in the third game, she scored 13 less than in the second game. what was her score in the first game?