Sound waves travel at 346 m/s in air at room temperature.
Find, in km, the distance travelled by a sound wave.

You are making a battery for a science project. you have copper wire for your first electrode. you need to choose a conductor, a second electrode, and a device to plug into your battery. you have already chosen a lemon conductor. complete each statement below about the options that include a lemon conductor.

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 25, a standard deviation of 2.5, and margin of error of 5%

Arectangle has a width of 5 cm and a length of 10 cm. if the width is increased by 3, how does the perimeter change?