The ratio of the number of boys to the number of girls in a school is 5 : 7. If there are 600 students in the school, how many are girls?

If y varies inversely with x and y = 8 when x = 5, then what is y when x = 2? 4 6 10 20

If a student wanted to design an experiment that uses sound scientific principles which of the following should he or she NOT do -Start with a hypothesis -Test more than one variable at a time -Record data in a table -Compare results with others

Solve. 3 (3x+10) = 50-x

Draw a contour map of the function showing several level curves. f (x, y) = (y - 8x) 2

If you buy a bike for 20% off for $180.40 what is the original price

Which of the following equations has the same solution as m - (-62) = 45? 1.) 25 - x = 8 2.) 120 + x = 13 3.) 120 - x = 13 4.) x + 25 = 8

The sum of the measures of the interior angles of a polygon is 2880°. How many sides does the polygon have?

What is the slope of the line through (6,9) (6,9) left parenthesis, 6, comma, 9, right parenthesis and (7,1) (7,1) left parenthesis, 7, comma, 1, right parenthesis?

Elizabeth has 87.75 feet of banner paper how many banners can she make that are 11.25 feet long?

The mean score of a college entrance test is 80; the standard deviation is 15. the scores are normally distributed. what percent of the students scored below 50?