A set of data is normally distributed with a mean of 75 and a standard deviation of 3. What percent of the data is in the interval 72-78?
a. 99.7%
c. 95.5%
b. 68.3%
d. 47.7%

Find the slope of the line that contains the following points. r(-2, 4), s(6, -2)

What is the solution of the systems of equations? y=2/3x+3 x=-2

Jordan has $5.37, which he is using to buy ingredients to make salsa. he is buying one red pepper for $1.29 and three pounds of tomatoes. if jordan has exactly the right amount of money he needs, what is the price per pound of the tomatoes? choose the correct equation to represent this real-world problem. solve the equation and verify the reasonableness of your answer. a pound of tomatoes costs .