Find the sum of the first 8 terms of the following sequence. Round to the nearest hundredth if necessary. 81
,
−
54
,
36
,
.
.
.
81,−54,3

The base of a triangle exceeds the height by 9 inches. if the area is 180 square inches, find the length of the base and the height of the triangle.

Table which ratio is equivalent to 3: 7? 6: 7 3: 21 24: 56 15: 30

Ten members of balin's soccer team ran warm ups for practice. each member ran the same distance. their combined distance was 5/6 of a mile. to find the distance that each member ran, balin wrote the expression below.