II. Rewrite the sentence in the same meaning 16. Perhaps Susan know the address. (may)
Susan
17. The report must be on my desk tomorrow. (has)
The report
18. Smoking is not allowed in the museum. (musn’t) You
19. It isn’t necessary to bring an umbrella. The weather is beautiful. (needn’t) We …………………………………………………………………
20. It would be better to go to the airport two hours before the flight. (should) You ……………………………………………………….

Explanation:

• Perhaps Susan may know the address.

• The report has to be at my desk tomorrow.

• You mustn't smoke in the museum.

• You needn't bring an umbrella...

• You should go to the airport two hours before the flight.

hope that helps uhh :)

what is life

explanation:

x=4, y=4

step-by-step explanation:

y=2x-4;

x+2y=12

we can use substitution since the first equation is solved for y

where ever you see y in the second equation, replace it with 2x-4

x + 2(2x-4) = 12

distribute the 2

x+4x-8 = 12

combine like terms

5x-8=12

add 8 to each side

5x-8+8=12+8

5x=20

divide by 5

5x/5 = 20/5

x =4

we still need to solve for y

y = 2x-4

we know x =4

y = 2(4) -4

y = 8-4

y=4