Amiri can deliver his newspapers in 86 minutes. it takes horus 63 minutes to do the same route. how long would it take them to deliver the newspapers if they work together?

Ineeeeed this is due tomorrow and i dont know the answer can you find all the exponents

Tim's phone service charges $26.39 plus an additional $0.21 for each text message sent per month. if tim's phone bill was $31.64, which equation could be used to find how many text messages, x, tim sent last month?

Find the least common multiple of the expressions: 1. 3x^2, 6x - 18 2. 5x, 5x(x +2) 3. x^2 - 9, x + 3 4. x^2 - 3x - 10, x + 2 explain if possible