Unit 3 TEST Review Scatt The value of y varies directly with x, and
when x = 8, y = 2.
Write an equation to represent the direct
variation.

7. the area of the playing surface at the olympic stadium in beijing isof a hectare. what area will it occupy on a plan drawn to a scaleof 1: 500?

Find two numbers if their sum is 91 and the ratio is 6: 7?

Atown has a population of 17000 and grows at 2.5% every year. to the nearest year, how long will it be until the population will reach 19600?