Will give 100 ! maura spent 1 1/2 hours on science homework. this was 2/3 of the total time she spent on homework. how much time did she spend on homework?

Answer asap ! the shortest path from point a to point b goes through a pond. to avoid the pond, you must walk straight 34 meters along one edge of the pond, then take a 90 degree turn, and again walk straight 41 meters along another edge of the pond to reach point b. about how many meters would be saved if it were possible to walk through the pond? a. 11 m b. 20 m c. 30.45 m d. 21.73 m

Solve 2x+y=3 x+y=5 in substitution method

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?