If Ellen works overtime on Sunday or Wednesday night
and Thursday night, she will earn enough money to buy
a tennis racket. Does this give her two or three chances
to earn enough money? Explain your reasoning.
math 156 - PsyDAG, Saturday, January 23, 2010 at 7:56pm
If it is "either/or," she is only going to do one of those. "And" suggests that both are required. Does that help?