Держи 1 и 3 ;) :
1)
Program solution;
Uses Crt;
Var i, poloz, otrits, zero : Byte;
n : integer;
Begin
ClrScr;
poloz := 0;
otrits := 0;
zero := 0;
for i := 1 to 10 do
begin
readln(n);
if n > 0 then poloz := poloz + 1;
if n < 0 then otrits := otrits + 1;
if n = 0 then zero := zero + 1;
end;
write('+: ', poloz, ', -: ', otrits, ', 0: ', zero);
ReadKey;
End.
3:
Program solution;
Uses Crt;
Var sum, num, count : Word;
Begin
ClrScr;
sum := 0;
count := 0;
while sum <= 100 do</strong>
begin
write(': ');
readln(num);
sum := sum + num;
count := count + 1;
end;
writeln('Было введено чисел: ', count);
ReadKey;
End.