Use "the product of 6 and the sum of 3 times a number n and 5" to answer the questions below. Write an expression that represents the statement. Explain how you decided what operation symbols to use in your expression.

The school board administered a math test to all students in grade 66 at high achievers charter school and determined that 15\%15% of them were below grade level in math. based on this data, which of the following conclusions are valid? choose 1 choose 1