Trong một nền kinh tế đóng, giả sử có các hàm số sau:Hàm tiêu dùng: C= 55 + 0,75YdHàm đầu tư: I = 70 + 0,15YChi tiêu của chính phủ: G = 100Hàm thuế ròng: T = 50 + 0,2YSản lượng tiềm năng: Y* = 900Yêu cầu:a) Xác định mức sản lượng cân bằng của nền kinh tế? Hãy nhận xét về tình hình ngân sách của chính phủ?b) Giả sử các doanh nghiệp tăng các khoản đầu tư là 20. Tính mức sản lượng cân bằng mới? Tính số tiền thuế chính phủ thu thêm được?

Rewrite the following sentences in active voice. caution: one sentence (only one) is written in active voice. do not rewrite it just label it as being active. 1). the use of copernicus's theory was forbidden by religious leaders until 1757. 2). i am puzzled by your question. 3). the girl is frightened by horror movies; she only watches chick-flicks. 4). radium and polonium were discovered by marie curie. 5. most of the town was destroyed by a tornado. 6). these flowers were planted by the 4-h club. 7). the little boy showed his mother the bruises, cuts. and bumps on his shin. 8). pluto was discovered by clyde william tombaugh in 1930 in flagstaff, arizona. 9). the painting was purchased by mr. jones. 10). the song was performed many times by kate smith. 11). england was ruled by a woman nicknamed "bloody mary" from 1553-1558. 12). the law of universal gravitation was discovered by sir isaac newton.

Environmental science jobs are expected to grow by how much between now and 2016? a) 5% b) 15% c) 25% d) 100%

Long-term alcohol use can cause major depression. a. true b. false