Suppose a and b are dependent events. if p(a) = 0.4 and p(ba) = 0.8, what is
p(a|b)?

Find the domain of the following expression: 1/(√x)-2

Noel is hoping to make a profit (in $) on the school play and has determined the function describing the profit to be f(t) = 8t – 2654, where t is the number of tickets sold. what does the number 8 tell you?

At store a, erasers are sold individually. the cost y of x erasers is represented by the equation y=0.75x. the costs of erasers at store b are shown in the graph.