We have a population of 200 people with a growth rate of 2%. Which equation do we use to calculate how long it will take for the population to double to 400 people? Group of answer choices
70/.2

200/,2

200x2

400/2

70/2

70/.02

200/.02

200x.02

200/2

Which values for a and b will create infinitely many solutions for this system of equations? ax-y=8 2x+y=b

Suppose a pendulum is l meters long. the time, t,in seconds that it tales to swing back and forth once is given by t=2.01

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%