How do I work out this math problem - 8y + 20z and show the work?

An item costs $380 before tax and the sales tax is $7.60 find the sales tax rate write your answer as a percentage

Which of the following statements about correlation is true? Choose the correct answer below. A. We say that there is a positive correlation between x and y if there is no distinct pattern in the scatterplot. B.

Michelle collected data on the weight of 200 apples at the farmer's market. Most weighed 0.30 -.40 pounds, but three weighed over a p ound each. Michelle identified this as a striking deviation. What should she do with it? A) Ignore the data.

Stephen is making a map of his neighborhood. He knows the following information: The distance from his home to the park is 10 blocks The distance from his home to his friend's house is 15 blocks The distance from the grocery store to his home is 9

At Davis middle school 372 students ride the bus, if this number is 60% of the school enrollment. Then how many students are enrolled in the school

Approximate the value of 12-2pie

Jeff is buying apples and bananas from the farmer's market. He know that to find his total cost he will use the expression 1.25a + 0.50b, where a stands for the number of apples he bought and b stands for the number of bananas he bought.

A theater charges $5 for student tickets and $7 for adults tickets. They sold 75 tickets for a total of $425. Which set of equations can be used to determine x, the number of students tickets sold, and y, the number of adult tickets sold?

Give a real-world example of an experiment in which all of the outcomes are not equally likely. Can you make a prediction for this experiment, using theoretical probability?

If A = (6i-8j) units; B = (-8i - 3j) units, and c = (26i-19j) units determine a and b such that a A + bB+C = 0