PLEASEE HELP WILL GIVE BRAINLIEST SHOW STEPSSS A water tank holds 1,216 gallons but is leaking at a rate of 5 gallons per week.

A second water tank holds 1,520 gallons but is leaking at a rate of 9 gallons per week.

After how many weeks will the amount of water in the two tanks be the same?

Jeffery conducted a survey in his school and found that 30 of the 50 eighth grade students' favorite subject is mathematics. based on the results, jeffery concluded that out of the 200 students in his school, 120 students' favorite subject is mathematics. select the statement that is true about jeffery's conclusion. a. jeffery's conclusion is not valid because the sample was biased since only 200 students were surveyed. b. jeffery's conclusion is valid because the sample was random since all of the students were eighth grade students. c. jeffery's conclusion is valid because the sample was random. d. jeffery's conclusion is not valid because the sample was biased since all of the students were eighth grade students.

Math question.. plz me .. best answer all

Find the arc length of the semicircle. 7the grade