❗❗NO LINKS+CORRECT ANSWER+EXPLANATION=100POINTS+BRAINL IEST Simplify fully:
(btw the π and a are supposed to be together (no gap) it just wouldn't let me write it like thay))

Thanks))

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

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