I’d say 21 and -1 :)
21 * -1 = -21
21 - 1 = 20
Yolanda will sew 54 buttons in 3 days.
If she sews 3 sweaters a day then, by the end of each day she will have 18. After three days she will have 54.
hope this helps and have an awesome day !
for sequence -17, -22,-27,-32
n = -17 - (n-1)5...eqn for sequence
(1,4) you go right 1 time, and than go up 4.
A) If you only sample people in a sports supply store, your sample will be biased. People in a sports supply store are more likely to be people that belong to a gym.
B) While it does not have necessarily the same amount of bias as sampling people in the sports supply store, people that go to a park are generally more likely to be people that exercise or have a gym membership.
C) Taking a random sample of people in town is a good way to get a non-biased sample. They are not necessarily predisposed to answer your question one way or another.
D) For the same reason as choice A, this is a biased sample.
C is the best choice.