Final answer:
To find the height of Charlie's scale model tree (using a scale of 0.5 inches for every foot), multiply the tree's actual height (24 feet) by the scale factor. The model will be 12 inches tall.
Step-by-step explanation:
Charlie wants to make a scale model of a tree that is 24 feet tall using a scale of 0.5 inches for every foot. To find the height of the model, you multiply the actual height of the tree by the scale factor.
Scale factor: 0.5 inches/foot
Actual height of tree: 24 feet
Multiply these two values to calculate the height of the model: 0.5 inches/foot Ă— 24 feet = 12 inches. Therefore, the height of his model tree will be 12 inches tall, which corresponds to option A).