At a country concert, the ratio of the number of boys to girls is 2: 7. if there are 250 more girls than boys, how many boys are a the concert?

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

How do you create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1?

Tatiana wants to give friendship bracelets to her 32 classmates. she already has 5 bracelets, and she can buy more bracelets in packages of 4. write an inequality to determine the number of packages, p, tatiana could buy to have enough bracelets.