Are the two expressions equivalent?
expression a: 11z+9z
expression b: (11+9)z
a.
no, because for z = 5, the value of expression a is 100 and the value of expression b is 64.
b.
no, because for z = 5, the value of expression a is 64 and the value of expression b is 100.
c.
yes, because for z = 5, the value of expression a is 100 and the value of expression b is 100.
d.
yes, because for z = 5, the value of expression a is 64 and the value of expression b is 64.

Which statement about the relative areas of ? abc and ? xyz is true? the area of ? abc > the area of ? xyz the area of ? abc < the area of ? xyz the area of ? abc = the area of ? xyz more information is needed to compare.

The blue whale is the largest animal living on the earth. the average blue whale measures 100 feet long (30 meters) and weighs 300,000 pounds (136,000 kilograms). a whale’s head is 1⁄3 of the length of its body. a new baby whale is 1⁄4 the length of a grown whale. the average man is 1⁄17 the length of a blue whale, and 1⁄1,818 its weight. a human baby measures 1⁄4 of the length of an adult. calculate the following information: how long is a whale’s head? how long is a new baby whale? how tall is the average man? how much does the average man weigh? how tall is the average human baby?

Use complete sentences to differentiate between a regular tessellation, and a pure tessellation. be sure to include specific types of polygons in your explanation.