Aadult blinks about 450 times every 30 minutes. a 12 year old blinks about 150 times every 15 minutes. how many more times does a adult blink every hour than a 12 year old

Find the solution of system of equation y= x-4 y=4x+2

Ined this is due tomorrow and i dont know the answer can you find all the exponents

Aculture started with 2,000 bacteria. after 8 hours, it grew to 2,400 bacteria. predict how many bacteria will be present after 19 hours . round your answer to the nearest whole number. p=ae^kt