2=7/2 (5x+6) how do i solve? i keep getting a super weird decimal

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15

Consider a cube that has sides of length l. now consider putting the largest sphere you can inside this cube without any point on the sphere lying outside of the cube. the volume ratio -volume of the sphere/ volume of the cube is 1. 5.2 × 10−1 2. 3.8 × 10−1 3. 1.9 4. 2.5 × 10−1 5. 3.8