there are 20 pieces of candy in a bag. 12 pieces are chocolate. what percentage of the pieces in the bag are chocolate

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%

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?

Ineed to know the ordered pairs for this equation i need the answer quick because it’s a timed test