Translate the sentence into an equation. The sum of 2 times a number and 7 equals 9.
Use the variable c for the unknown number.

An investment decreases in value by 30% in the first year and decreases by 40% in the second year. what is the percent decrease in percentage in the investment after two years

Atotal of 766 tickets were sold for the school play. they were either adult tickets or student tickets. there were 66 more student tickets sold than adult tickets. how many adult tickets were sold?

What are the excluded values? m+5/mn+3m