Find the hidden question write a problem about going to the laundromat that has a hidden question. a single load of laundry cost 2 dollars and a double load cost 4 dollars. solve your problem

International calls require the use of a country code. many country codes a 3-digit numbers. country codes do not begin with a 0 or 1. there are no restrictions on the second and third digits. how many different 3-digit country codes are possible?

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle