What is the rounded answer to each question in scientific notation? 1. (68.5 × 2040000) / (0.25 × 14) = 39925714.28

2. (6.3 x 10^7) x (4/20) = 12,600,000

3. (12,600,000 x 10^7) x (1/300) = 42,000

Solve with work both bert and ernie received an increase in their weekly salaries. bert's salary increased from $520 to $520. ernie's salary went from $580 to $645. find the percent of increase for each salary. what was the larger of the two percents ?

According to the 2008 u. s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of florida was approximately two times the population of california. b. the population of florida was approximately twenty times the population of california. c. the population of california was approximately twenty times the population of florida. d. the population of california was approximately two times the population of florida.

Collin did the work to see if 10 is a solution to the equation r/4=2.4