jackson has decided to give part of his stamp collection away. he gives away 1/4 of the stamps to hi brother, and then 2/3 of the remaining to his sister. if has has 4 stamps remaining, how many stamps did jackson have in his original collection

How do you use the additive inverse to evaluate an expression that uses subtraction in a full sentence

Find the value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%