Paula drove 217 miles in 305 hour’s. How many miles will she drive in 4 hours

2.8 miles

Step-by-step explanation:

You need to find how many miles she drove in an hour.

217/305 = 0.7 of a mile in an hour

0.7 x 4 = 2.8 miles

She drove 2.8 miles in 4 hours

what is the graph

step-by-step explanation:

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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