The amount of money in toni's savings account after x weeks is described by the function f(x) = 5x + 20. which best interprets this function? 1.toni's savings account started with $5 and increased by $20 each week. 2.toni's savings account started with $20 and increased by $5 each week. 3.toni's savings account started with $20 and decreased by $5 each week. 4.toni's savings account started with $5 and decreased by $20 each week.

Elijah and his sister went to the movies. they had $34 altogether and spent $9.50 per ticket. elijah and his sister bought the same snacks. write and solve an inequality fotlr the amount that each person spent on snacks. interpret the solition

What is the solution set of the quadratic inequality x^2-5< or equal to 0

An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.