Jake noted that speed of light is approximately 1.1 × 109 km/h; (Level 5) the speed of sound is approximately 1.2 × 103 km/h; and 11÷ 12 = 0.916ሶ . Using Jake’s figures how many times faster is light than speed? Write your answer in standard form.

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.

Can any one me with the answers to these questions asap?

Suppose that in 2008 , 840,800 citizens died of a certain disease assuming the population of teh country is 399 miliion, what is the mortality rate in units of deaths per 100,000 people?