Liam is trying to build an emergency fund. For planning purposes, he developed two functions, L(t) and M((), that determine the least amount and most amount, respectively, of money (in dollars) in any given month contributed to the emergency fund (with t = 0 corresponding to April).
What can he reasonably conclude if L(3) = 1,500 and M(3) = 2,5007 (, in July, the will have contributed between $1,500 and $2.500 to his emergency fund.