`7^(4k)=___` (mod 100)

Compute x scuh that 10^(4)=x (mod 19).

Compute x such that 5^(4) -= x (mod 8)

Find x if 10^(4) -= x (mod 23)

The positive values of k such that (k-3) -= 5 (mod 11) are ….

pq(mod1) if

Find least non negative integer r such that 1237"(mod 4)"+985"(mod 4)" -= r"(mod 4)"

If 59-=3 (mod 7) , 46 -=4 (mod 7) then 105 -= …. (mod 7 ), 13-=…. (mod 7) , 413-= …… (mod 7) , 368 -= ….. (mod 7).

If 2^(8)-=(a+1)("mod "7) is true then a is

(1!+2!+3!+4!)=p(mod10) then p is

If (3-x) -=(2x-5) (mod 4) then one of the values of x is