<span>They use 9 blocks each, a total of 18 blocks.
Bill: 4b + 2
Ron: 8b - 5
To look for the value of b; I assume that both used the same number of blocks.
4b + 2 = 8b - 5
4b - 8b = -5 -2
-4b = -7
-4b/-4 = -7/-4
b = 1.75</span>
Bill: 4b + 2 where b = 1.75 ; then, 4(1.75) + 2 = 7 + 2 = 9
<span>Ron: 8b - 5 where b = 1.75; then, 8(1.75) -5 = 14 - 5 = 9</span>
Hi there!
Dimensions of rectangular room :-
• Length = 109 inches
• Breadth = 103 inches
Dimensions of square tiles :-
• Each side = 3 inches
It's known :-
No. of tiles = Area of rectangular room / Area of tile
No. of tiles =

No. of tiles =

No. of tiles = 1,247
Hence,
Th' number of tiles required for the job is 1,247
~ Hope it helps!
According to the rules of significant figures in counting the number of significant figures when dealing with the measurement, especially when it is scientifically measured, you must consider 2 zeros at the right of the period. For example, in 98.00 there are 4 significant figures
Answer:

Step-by-step explanation:
Remember these rules for addition, substraction, multiplication or division:
Addition
+ + = +
- - = -
Big + number - = +
Big -number + = -
Substraction
change the sign!
And follow the rules for addition
Multiplication or division
+ + = +
- - = +
+ - = -
Now for the exercise

<u>- (
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Change the signal

<u>(
)</u>
