Ability challenge k=7

P 12 1 2

-2 1 2 1 1 13/7 -2

X = 1/32 seconds

X= minus two fifths.

The fourth problem is that the algebraic expression of x=-2 gets nine quarters. When x takes 9, the value of this algebraic expression is-17.

Ability challenge

X=4 (assuming there are three brothers and sisters)

I hope to adopt my