Which graph shows equivalent ratios? On a coordinate plane, a line goes through points (2, 3) and (4, 4). On a coordinate plane, a line goes through points (2, 2) and (3, 6). On a coordinate plane, a line goes through points (1, 2) and (2, 4). On a coordinate plane, a line goes through points (0, 6) and (1, 5).

b

step-by-step explanation:

the word superfluous means unnecessary

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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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