If 25_y = 1111_two ,find the value of y

Find the value of x for which 32_four = 22_x

In what number base was the addition 1+ nn = 100 , where n > 0 done?

Convert 101101_two to a number in base ten

The sum of 11011₂, 11111₂ and 10000₂ is 10m10n0₂, find  the value of m and n

Simplify 11011_two – 1101_two

Evaluate  ${{({{111}_{two}})}^{2}}$ and leave your answer in base 2

Convert 42₅ to a base three numeral 

Arrange the following numbers in descending order of magnitude 22_three, 34_five, 21_six 

If ${{23}_{x}}+{{101}_{x}}={{130}_{x}}$Find the value of x