помогите пожалуйста решить систему x-2y=3 log1/2+log1/2y=-1 a)(1/2;8) b)(4;1/2)

найдите три числа , если первое число относится ко второму как 3:4, второе к третьему как 2/3:0,75, а разность наибольшего и наименьшего чисел равна 3.

помогите решить номер 1 и 3(1) и еще задание 2 фотография разложите на мн-житель 

1 Fill in the correct word (too or enough)

1 I left the coffe for a minute to cool becayse it was___hot to dring.

2 He wasn*t strong_____to lift that heavy box.

3 There aren*t____policemen in our town.

4 Do you have___information to help me with this problem?

5 It is___difficult to do for a little child.

6 I do not have___time to prepare dinner.

7 I didn*t buy the car because it was___expensive.

8 He didn*t work hard___to pass the exam

.9 My mum can*t sleep because she drinks__much coffe.

10 She isn*t old___to start driving.

2 Make one sentence from two.Complete the new sentence using too or enough.

1 I can*t drink this coffe.it*s too hot.

This coffe is___

2 Nobody could move the piano.It was too heavy.

The piano____

3 Don*t eat these apples.They*re not ripe enough.

These apples___

4 I can*t explain the situation.It is too complicated.

The situation____

5 We couldn*t climb over the wall.It was too high.

The wall_____

6 Three peopl can*t sit on this sofa.It isn*t big enough.

This sofa___

8 You can)t see some things without a microscope. They are too small.

Some____