Find each unit price, witch is the better buy, explain your answer.

wire: $1.49 for 3 ft (36 inches)
wire: $0.69 for 18 inches

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angles. measure need asap

The number of potato chips in a bag is normally distributed with a mean of 71 and a standard deviation of 2. approximately what percent of bags contain between 69 and 73 potato chips? approximately 68% approximately 71% approximately 95% approximately 99.7%

How can the correlation in the scatter plot graph below best be described? positive correlation negative correlation both positive and negative no correlation