Suppose we know one of the three people has alzheimer's disease, but we don't know which one. what is the conditional probability that they are both women

The classrooms are trying to raise $1,200.00 for charity. mrs. leblanc's class has raised 50%. mr. patel's class has raised $235.14 ms. warner's class has raised 1/3 as much as mrs. leblanc's class. how much more money is needed to reach the goal of $1,200.00?

Maria walks a round trip of 0.75 mile to school every day.how many miles will she walk in 4.5 days

Satchi found a used bookstore that sells pre-owned dvds and cds. dvds cost $9 each, and cds cost $7 each. satchi can spend no more than $45.