An elevator on the ground floor of a building starts going up at the same time
as an elevator 18 floors above starts to go down. If the upward elevator climbs
half a floor per second and the downward elevator falls 1 floor per second,
then how high will they be when they pass each other?

Plz which expression is equivalent to the expression below?

Atextile fiber manufacturer is investigating a new drapery yarn, which the company claims has a mean thread elongation of 12 kilograms with a standard deviation of 0.5 kilograms. the company wishes to test the hypothesis upper h subscript 0 baseline colon mu equals 12 against upper h subscript 1 baseline colon mu less-than 12 using a random sample of n equals 4 specimens. calculate the p-value if the observed statistic is x overbar equals 11.8. round your final answer to five decimal places (e.g. 98.76543).

Solve the equation. 2x - 8(x+1)= 6(2x - 3)