The series skips one letter each time: A, C, E, G, I.

After folding, the paper will resemble Design B.

The Berlin Wall fell on November 9, 1989, marking the end of the Cold War.

The United Kingdom officially left the European Union on January 31, 2020.

The United Nations officially came into existence on October 24, 1945.

The United States declared independence from Great Britain on July 4, 1776.

The first manned mission to the Moon, Apollo 11, was launched in 1969.

The first manned moon landing occurred on July 20, 1969.

The Marshall Plan was launched in 1948.

The World Trade Organization (WTO) was established on January 1, 1995.

World War II began on September 1, 1939, when Germany invaded Poland.

100 divided by 6 gives a quotient of 16 and a remainder of 4.

100 divided by 8 gives 12 with a remainder of 4 (100 - 96 = 4).

1000 divided by 6 gives a remainder of 4.

1000 divided by 9 gives a remainder of 1.

1001 divided by 7 gives 143 with a remainder of 2 (1001 - 7*143 = 2).

256 divided by 11 gives a quotient of 23 and a remainder of 3 (256 - 23*11 = 3).

256 divided by 15 gives a quotient of 17 and a remainder of 1 (256 - 255 = 1).

45 divided by 8 gives a quotient of 5 and a remainder of 5.

The divisor must be greater than the remainder, so 15 is a valid divisor (45 = 15*3 + 0).

The divisor must be greater than the remainder, so 6 is a valid divisor (56 = 6*9 + 2).

7 divided by 3 gives a remainder of 1 (7 = 3*2 + 1).

Multiplying the number by 3 gives (8k + 5) * 3 = 24k + 15, which gives a remainder of 7 when divided by 8.

Since 6 mod 3 = 0, the remainder when the number is divided by 3 is also 0.

The zigzag fold will create a wavy line when unfolded.

Unfolding the paper will reveal two triangles from the cut-out.

The shape remains a rectangle when folded in half along its length.

Adding a surfactant to water decreases the surface tension by disrupting the cohesive forces between water molecules.

The acceleration of the center of mass of a wheel rolling down an incline is g sin(θ).

The point of contact with the ground is momentarily at rest when the wheel rolls without slipping.