After sales tax, an $81 cell phone costs $84.24. What is the sales tax percentage?​

Write two subtraction equations that are equivalent to 5 + 12 = 17.

Which math sentence can be used to determine if the triangle is a right triangle?

The weights of players in a basketball league are distributed normally. the distance (d) of each player's weight (w) from the mean of 86 kilograms was computed as follows: d = |w - 86| if d is greater than 7 for approximately 5% of the players, what is the approximate standard deviation of the players' weights? a. 1.75 kilograms b. 3.5 kilograms c. 4.3 kilograms d. 7 kilograms