Simplify the expression 3 (√144-6)

3 (√ (144) - 6)

3 (12 - 6)

3 (6)

18

First work inside the square root symbol 144-6 is

answer 138

Now it says give the square root of that number which falls between 11 and 12

11x11=121

12x12=144

so without using a cal. we can see its about 11. 3 estimated

when I work it out or use cal. its 11.747

now multipy that numbe by 3

35.24