If x varies inversely as y, and x = 7 when
y=3, find y when x = 9.

At school there are 526 students and 263 are girls about how likely is it that a randomly chosen student will be a boy

Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?

Solve 2^x=32 and rewrite this equation in a logarithmic form