Solve for x: 4/x - x/8 = 0

When eating out, record the total cost of your meal (before tip) and the tip that you left. determine the percent of the cost of the meal that you left as a tip.

Find the value of x for which abcd must be a parallelogram -9-6x x-30

Sole with work in 10 years, the average number of hours of tv watched per week by teenagers dropped from 23.9 to 21.4. find the percent of change.