What is the equation of the axis of symmetry of the graph of y=ax? +bx+c? -b
Oy
2a
X=
-b
2a
-b
ОУ 2с
-b
-
20

Having a hard time understanding this question (see attachment).

Ten members of balin's soccer team ran warm ups for practice. each member ran the same distance. their combined distance was 5/6 of a mile. to find the distance that each member ran, balin wrote the expression below.

If 7x=9y, y/z = 7/5 , then x/z = (a) 2/7 (b) 7/9 (c) 9/5 (d) 9/7 (e) 5/9