question Solve for x 13 9 231 9 x 2

Math

Solve for �x: 13(9−�)=231(9−x)=2

A. �=3x=3
B. �=4x=4
C. �=5x=5
D. �=6x=6

Distribute the 1331, simplify, and solve.

If the radius of a circle is 7 units, what is its circumference?

A. 14�14π units
B. 21�21π units
C. 28�28π units
D. 49�49π units

The surface area of a cube is 5454 square units. What is the length of each side?

A. 22 units
B. 33 units
C. 44 units
D. 66 units

What is the next number in the sequence: 3, 6, 12, 24, ...?

A. 36
B. 42
C. 48
D. 54

In a rhombus, what is the relationship between the diagonals?

A. Equal in length
B. Perpendicular
C. Bisect each other
D. Both equal and bisect each other

What is the name of a polygon with eight sides?

A. Octagon
B. Hexagon
C. Heptagon
D. Decagon

Solve for �x: 25(10+�)=652(10+x)=6

A. �=1x=1
B. �=2x=2
C. �=3x=3
D. �=4x=4

The circumference of a circle is 18�18π units. What is its radius?

A. 3 units
B. 6 units
C. 9 units
D. 12 units

Solve for �x: 37(18−�)=873(18−x)=8

A. �=4x=4
B. �=6x=6
C. �=8x=8
D. �=10x=10

If �+7=20a+7=20, what is the value of �a?

A. 10
B. 11
C. 12
D. 13

If a circle has an area of 25�25π square units, what is its radius?

A. 5 units
B. 7 units
C. 10 units
D. 25 units