What is a counterexample for the following conjecture ? All four -sided figures are squares.

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

What is the rate of change of a line that passes through (2,-5) and (6,-2)?

Aclothing store has the sign shown in the shop window. pani sees the sign and wants to buy 3 shirts and 2 pairs of jeans. the cost of each shirt before the discount is $12, and the cost of each pair of jeans is $19 before the discount. write and simplify an expression to find the amount pani pays if a $3 discount is applied to her total