Apacket contains 24 pens. henry and alice share them in the ratio 3: 5. how many does alice receive

Anyone know these questions? i need ,.

(c) a vine called the mile-a-minute weed is known for growing at a very fast rate. it can grow up to 0.5 ft per day. how fast in inches per hour can the mile-a-minute weed grow up to? show your work using the correct conversion factors.

Use the second shift theorem to find the inverse laplace transform of (e^−3s) / (s^2 + 2s − 3)