In some countries congress, the number of representatives is 80 less than 5 times the number of senators. there are a total of 520 members. find the number of senators and the number representatives

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

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

The multiplicative property of equality states that for real numbers a, b, c, and d, if a = b and c = d, then ac = bd. true false