At the 6th grade school dance, there were 142 boys 79 girls and 15 adults.
write the ratio of the number of boys to the number of girls

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

Every weekday, mr. jones bikes from his home to his job. sometimes he rides along two roads, the long route that is shown by the solid lines. other times, he takes the shortcut shown by the dashed line. how many fewer kilometers does mr. jones bike when he takes the shortcut instead of the long route?

Which of the following equations is equivalent to x/3-6/x=1