If a tree in a 1 in: 2 ft scale drawing is 10 intall, how tall is the actual tree? a. 40 ft b. 20 ftc. 12 ft d. 5 ft
1 answer:
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Answer:
1.46
Step-by-step explanation:
First find the the mean score before he made a 90.
Now add the score of 90 and calculate.
Subtract the two scores.
His mean test score increased by 1.46.