The current population of China is 1,244,130,000 people. Estimate the population using scientific notation. A)1 x 10-9
B)1 x 10-8
C)1 x 108
D)1 x 109​

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

Solve the following inequalities and show the solution on a number line. 3/4 (2x-7) ≤ 5

35 ! insert < , > , or = to make the sentence true. 12 __ 25 > =