Iam a 2 dimensional shape. my perimeter is also known as a circumference

Erin bought christmas cards for $2 each to send to her family and friends. which variable is the dependent variable?

The price of a visit to the dentist is calculated according to the formula 50+100n50+100n where nn is the number of cavities the dentist finds. on your last visit to the dentist, 22 cavities were found. what was the cost of your visit?

Which image (a’ b’ c’ d’) of abcd cannot he produced using only reflections ?