A room has 9 tables with 6 chairs each and 7 tables with 8 chairs each. How many chairs are in the room altogether? Pls use parentheses

110

Step-by-step explanation:

(9x6)  + (7x8) = 110

There are 110 chairs in total, hope this helps!

i dont know and i dont care for math bc it is a stupied subject

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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