The diameter of a circle is 3 ft. Find the circumference to the nearest tenth.

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?

Which is the focus of a parabola with equation y2=4x

Suppose a laboratory has a 30 g sample of polonium-210. the half-life of polonium-210 is about 138 days how many half-lives of polonium-210 occur in 1104 days? how much polonium is in the sample 1104 days later? 9; 0.06 g 8; 0.12 g 8; 2,070 g