At her health club, elke likes to use exercise bikes and weights. she spent 3/4 hour on the bikes and 1/5 hour less than that on the weights. how much time does she spend on the weights? simplify answer if possible

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Ascatter plot with a trend line is shown below. which equation best represents the given data? y = x + 2 y = x + 5 y = 2x + 5

David estimated he had about 20 fish in his pond. a year later, there were about 1.5 times as many fish. the year after that, the number of fish increased by a factor of 1.5 again. the number of fish is modeled by f(x)=20(1.5)^x. create a question you could ask that could be answered only by graphing or using a logarithm.