Abag contains only black marbles and white marbles . ezra reached into the bag without looking , got 30 marbles , and found that 12 of the marbles were black . ezra is going to reach in the bag again and get one more marble .
what is the experimental probability that the marble will be black ?
a) 1/12
b) 2/5
c) 1/2
d) 2/3

Chanelle deposits $7,500 into the bank. she does not withdraw or deposit money for 6 years. she earns 6% interest during that time. what will the balance be when she is finally able to withdraw her money?

Choosing a booth location: your manager is sending two people to work at the conference. she wants a booth that will give your company good visibility for no more than 35% of the total budget ($3000). the conference coordinator just told you there are only five booths left. which booth will you choose? write the inequality that shows how much money you can spend on the booth simplify the inequality that shows how much money you can spend on the booth.

If a is a nonzero real number then the reciprocal of a is