Gary challenged his sister, Mary, to try and beat his final score of 32 pennies. After tossing 20 pennies, Mary made 9 in the can. If Mary continued to throw pennies until she threw exactly 100 pennies, would
you expect Mary to win, tie, or lose and by how many pennies? Round her expected score to the nearest
whole number

What values of c and d make the equation true?

In the following diagram it is given that dec,ab || dc, ad || eb, and ad is congruent to bc. a)why isn't abc a parallelogram even though it has a pair of parallel sides and a pair of congruent sides b)explain why be must be congruent to bc. further explain what type of triangle this makes triangle abc and what it tells you about angle 1 and angle 2c) finally why must angle 3 be congruent to angle 1? further, explain why we know that angle 3 is congruent to angle 2

How are sas and sss used to show that two triangles are congruent?