giúp em làm phần III. Bài Tập với ạ .em cám ơn ạ

Một người đem ban một cái đồng hồ với giá 500000 đồng và được lãi 15% tiền vốn . Hỏi muốn tiền lãi bằng 30% tiền vốn thì người đó phải bán cái đồng hồ với giá bao nhiêu ?

Tìm x,y biết : X/5 = 2/-10 = -3/y

là học sinh e đã làm gì để góp phần tham gia an toàn giao thông đúng quy định

Giúp mình làm bài bốn thôi ạ cảm ơn nhiều

10 câu trắc nghiệm thôi giúp mk đi plssssss

V. The passage below contains 10 mistakes in spelling, grammar and word form. UNDERLINE the mistakes and WRITE THEIR CORRECT FORMS in the space provided. Football has grown to become one of most successful sports and business opportunities on the planet. In the 2006 World Cup Finals, several hundred global companies advertised their production at stadiums in Germany. Through televising games the promotion of soft drinks, fast food, credit cards, and others items helped to generate a turnover of nearly $1 billion. This huge number of sponsorship has helped to raise the profile of businesses, but it is also valuable for football associations throughout the world. FIFA has made arrangements so that a lot of the money raised is returned to sport development programmes in the nations where competed in the tournament. Moreover, football and money don’t always result in happiness. Many problems are caused in the major competitions when teams demand more money for each performances. Often players become impatient, and demand to be paid before playing. This is unlikely to end well, cause lots of problems. If these arguments affect team spirit, then results are poor. Unfortunately, poor results mean that teams receive less money from the tournament organisers, so in the end the development of the game in these nations suffer. This means that the chance with improvement is small. Sometimes sport and money just don’t mix

TÌm một số biết rắng số đó kém 100 là 25 đơn vị?

mng giải giúp em câu này với ạ

quy đồng mẫu số nhiều phân số a)1/2,1/3 và 3/5 b)1/2,2/3 và 3/4