Latoya can paint five 10-foot-by-14-foot rooms by herself in 14 hours. lisa can paint five 10-foot-by-14-foot rooms by herself in 10 hours. working together, how long would it take to paint 5 10-foot-by-14 foot rooms?

( show the work! i really want to understand this problem.)

One positive number is 9 more than twice another. if their product is 95, find the numbers

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)

If a is a nonzero real number then the reciprocal of a is