Which of these countries is not a member of the European Union?

Choose the incorrect statement about Brexit.

In what year has the number of European Union countries decreased from 28 to 27?

Choose the correct statement about the European Union (January 2022).

Which option corresponds to the unfolded cube (the pattern is only on one side)?

Which option corresponds to the unfolded cube (the pattern is only on one side)?

Select the object that differs from the given one.

An equilateral triangle has a circumference 30 centimeters. What area has a square with a side of the same length as a side of the triangle?

Decide which pair of numbers do not preserve equality of the following expression:
(0,5)^a = b

There are two expressions:
5 _ 9 _ 2 = 12
and
6 _ 2 _ 3 = 1
Decide what combination of symbols +, –, ·, : can be used to get correct results.