Cho một hình chữ nhật có chu vi là 46(cm).Nếu tăng chiều dài lên 3cm, giảm chiều rộng 3cm thì diện tích giảm 24cm^2.Diện tích ban đầu của hình chữ nhật là bao nhiêu?Chỉ cần đáp án thôi ạ

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I. Read the passage , and then answer the questions Everyone suffers from the common cold at some time or other. It isn’t a serious illness, but people spend a lot of money on medicine. The medicine can only relieve the symptoms. That is, it can make you cough less, make you feel better, and stop your nose running for a while. So far, there no cure for the common cold and no medicine to prevent it. People also drink a lot of hot water with sugar, lemon juice. It helps provide with a lot of vitamin C. 1. Why is the common cold very popular? …………………………………………………. 2. Is the common cold a serious illness? ……………………………………………………… 3. What does the medicine help people with the common cold? ………………………………………………………… 4. Beside medicine, what do people do to make them feel better? …………………………………………………………………… 5. Why is it useful? ……………………………………………………………. II. Supply the correct verb form: 1) What ……………you …………………..(do) last weekend? 2) I ……………………( go ) to the theater with my family last weekend. 3) They ( not come) ………………..to Maryam’s farewell party last night. 4) I wish I ……………………………..( be ) there with you. 5) Lan thinks she……………………….. ( speak ) English well. 6) They want him……………….. ( help) them. 7) They…………………………… ( be) pen pals for a long time. 8) Would you like( come)…………………..to my house next week. 9) We used to…………( write) to each other every month when we ………( be) at secondary school. 10. Tomorrow, I( study)……………………….unit 2. 11. We shouldn’t( eat)……………………sweet food. 12. We must( stay)…………………..in bed when we have a flu.