The diameter of a circle is 9 m. Find the circumference \textit{to the nearest tenth}to the nearest tenth.

If the measure of angle 1 is 110 degrees and the measure of angle 3 is (2 x+10 degree), what is the value of x?

The marriott family bought a new apartment three years ago for $65,000. the apartment is now worth $86,515. assuming a steady rate of growth, what was the yearly rate of appreciation? what is the percent of the yearly rate of appreciation?

Ab and bc form a right angle at point b. if a= (-3,-1) and b= (4,4) what is the equation of bc?