Sean started with 15 points during a
trivia game. then, he lost 15 points on
one turn and an additional 20 points
on his final turn.

show the change in sean's score using
the number line below
what is sean's final score?

Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 grams?

What is not true about kl and mn? what is mn? (show )

The width of a rectangle is 20 units. can the perimeter p of the rectangle be 64 units when its length x is 11 units? no, because p = 2x + 2(20) no, because p ≠ 2x + 2(20) yes, because p ≠ 2x + 2(20) yes, because p = 2x + 2(20)