question If 3 6 213k 6 21 what is the value of k

Math

If 3�+6=213k+6=21, what is the value of �k?

A. 5
B. 6
C. 7
D. 8

Subtract 6 from both sides and then divide by 3.

If a rectangle has a length of 15 units and a width of 6 units, what is its area?

A. 36 square units
B. 90 square units
C. 120 square units
D. 180 square units

If 3�+5=203e+5=20, what is the value of �e?

A. 5
B. 6
C. 7
D. 8

If 5�−2=235d−2=23, what is the value of �d?

A. 5
B. 6
C. 7
D. 8

What is the measure of each exterior angle of a regular pentagon?

A. 36∘36∘
B. 54∘54∘
C. 72∘72∘
D. 108∘108∘

In a right-angled triangle, what is the side opposite the right angle called?

A. Hypotenuse
B. Adjacent
C. Opposite
D. Base

If the diameter of a sphere is 12 units, what is its volume?

A. 36�36π cubic units
B. 72�72π cubic units
C. 108�108π cubic units
D. 216�216π cubic units

The volume of a cube is 6464 cubic units. What is the length of each side?

A. 22 units
B. 44 units
C. 66 units
D. 88 units

Solve for �x: 23(12−�)=532(12−x)=5

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

If 2�+3=172j+3=17, what is the value of �j?

A. 6
B. 7
C. 8
D. 9

If 3�+4=193f+4=19, what is the value of �f?

A. 3
B. 5
C. 6
D. 7