Joshua built a rocket for his science project and launched it from a platform to track its path. The height, h, in feet, of the rocket above the ground at time T seconds can be modeled by the equation h= -12t + 24t + 3. What is the maximum height the rocket reaches? A. 3 feet
B. 12 feet
C. 15 feet
PLEASE HELPP❗️❗️

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?

The edge of a cube was found to be 30 cm with a possible error in measurement of 0.4 cm. use differentials to estimate the maximum possible error, relative error, and percentage error in computing the volume of the cube and the surface area of the cube. (round your answers to four decimal places.) (a) the volume of the cube maximum possible error cm3 relative error percentage error % (b) the surface area of the cube maximum possible error cm2 relative error percentage error %

Which choice has the correct steps in graphing the solution set to the following inequality? -45_> 20x-5y