A swimming pool is being drained. The number of gallons of water in the pool changes with time t according to the equation G = -4t + 100. Which equation correctly solves the given equation for t?

This is geometry. could anyone ? i can't fail this class. my grade is quite low already.

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.

Xto the second power plus 14x plus 48. what are the factors? we are doing factoring trinomials with a=1