Niccis sister is seven years less than twice Nicci’s age ,a . The sum of Niccis age her sisters age is 41. Which equation represents this relationship.

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.

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c

While on a train trip, marsha noticed that there were 35 people in her train car. after the next stop, there were only 21 people in her car. if p represents the percent decrease in the number of people in marsha's train car, what is p?