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The new mean age will be greater than 14.2 years because the teacher is older than the previous mean.
Since it starts at 50 and goes to 35....it is a decrease since the amount is going down, or getting smaller. To find the percent, first find the difference 50-35 = 15; then divide by the initial amount of 50. So, 15/50 = 0.3, and then convert that to a percent by multiplying by 100. Therefore the percent decrease is 30%
Answer:
18
Step-by-step explanation:
Points A B C D and E are collinear.
