In the seventh grade, rachel read 15 books. in the eighth grade, she read 18 books. find the percent of increase in the number of books rachel read.
a.
30%
c.
20%
b.
3%
d.
18%

Suppose i flip two identical coins. what is the probability that i get one head and one tail?

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.

Jack has a rectangular piece of land, the area of which is represented by a1 = 9.5l. his brother has a different rectangular piece of land, the area of which is represented by a2 = l(14 − l). let a represent the area in square meters and l represent the length in meters of the pieces of land. the two equations plotted on a graph meet at a point as shown in the image