Students in a science class investigated how the speed of sound changes with the air temperature outside. The data are shown in the scatterplot. Science investigation. Air temperature, degrees celsius. Speed of sound, meters per second. x, y.

Based on the scatterplot, what is the best prediction of the speed of sound when the air temperature is 50°C?

Julie buys 2kg of apples and 7kg of pears ? 12.70. the pears cost ? 1.30 per kilogram what is the price per kilogram of the apples? show your working out

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.a city water tank holds 20 gallons of water. a technician empties 25% of the tank. how many more gallons of water must be removed from thetank so that it has 5 of the water that it started with: the technician must removemore gallons of water for the tank to have 5 of the water that it started with.

What line represents the relationship between r and s