What is the solution to the system of equations ? x=y-3 x+3y=13 a) (1,4) b) (4,1) c) (7,4) d) (2,5 , 5,5)

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.

Me! i really need to get this right before 9. prove the divisibility of 7^6+7^5-7^4 by 11. use factoring so you get a number times 11. just tell me the number. i need this done asap

The sum of these consecutive integers is equal to 9 less than 4 times the least of the integer. find the three integers