Oman said that it is impossible to raise a number to the power of two and get a value less than the original number do you agree with oman justify your reasoning

Which of the fallowing best completes the sequence 5,10,15, a) 30 b) 22 c)25 d)35

Match each expression with its simplified form.

The number of revolutions of two pulleys is inversely proportional to their diameters. if a 24-inch diameter pulley making 400 revolutions per minute is belted to an 8-inch diameter pulley, find the number of revolutions per minute of the smaller pulley.