X and y are two numbers taken from the list: 5, 6, 7, 8, 9, 10 (i) work out the greatest possible value of 3x-2y
(ii) work out the least possible value of 3x-2y

Two customers went to a post office. first customer paid $12 for 14 and 5 envelopes the second paid 24.80 for 10 postcards and 15 envelopes. what is cost of each envelope?

An account with a $250 balance accrues 2% annually. if no deposits or withdrawals are made, which graph can be used to determine approximately how many years will it take for the balance to be $282? it's e2020 ni️️as

Find the slope intercept form of (-3,6) and (3,-6)