In triangle JKL, angle K is a right angle. Write the sine of angle J as a ratio of side lengths

The size of a certain cell is 2.5*10^-9m. another cell is 1.5*10^3 times larger. how large is the larger cell in scientific notation?

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

Im gonna fail 7th grade selective breeding 1. creates offspring which are genetically identical to the parent 2. is the process of breeding only organisms with desirable traits 3. involves the removal of the nucleus of a cell 4. combines traits from organisms of different species