Expand and simplify

3(c-7)+2(3c+4)

9c - 13

Step-by-step explanation:

Given

3(c - 7) + 2(3c + 4) ← distribute both parenthesis

= 3c - 21 + 6c + 8 ← collect like terms

= 9c - 13

Step-by-step explanation:

3(c-7) +2(3c+4)

3c- 21 + 6c + 8

= 9c -13

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6 and 7 are the two consecutive whole numbers between which square root of 38 lie

Step-by-step explanation:

There are two methods to solve this problem

First method:

In this method we will find the square root of 38.

square root of 38 is 6.16

and 6.16 lies between 6 and 7

Therefore 6 and 7 are the two consecutive whole numbers between which square root of 38 lie.

Second method:

In this method we will find the square of the numbers which is close to 38

so there are two numbers 36 and 49 which are squares of 6 and 7 respectively.

therefore square roots of all the numbers which lie between 36 and 49 lie between 6 and 7