Mr hernandez calculates the total cost for everything before tax using this equation total cost= 13.1+3.70x5+1.89x3+1.49x9.99 do you agree with his equation? use numbers and words to explain why or why not. if the equation is not correct, write a correct eqaution

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

Student price tickets to a movie are $1 and non student tickets are $2. 350 tickets are sold and the total amount made is $450. how many non student tickets were sold ? a) 100 b) 150 c) 200 d)250

2.5 milligrams is equivalent to how many grams