Answer:
h=1
Step-by-step explanation:
4h=9h+13 ->changes sides so sign changes
4h+9h=13 ->normal adition
13h=13 ->divide
h=1
Answer:

Step-by-step explanation:

2689
rounded to the nearest tens = 2690
rounded to the nearest hundreds = 2700
rounded to the nearest thousands = 3000
If the number before the place it needs to be round off is 5 and above, then it is rounded up. If the number is 4 and below, it is rounded down.
For example:
2444
rounded to the nearest tens = 2440
rounded to the nearest hundreds = 2400
rounded to the nearest thousands = 2000
Answer:
c
Step-by-step explanation:
Let the length be 9x and the width = 8x
Perimeter = 2(l + w) = 2(9x + 8x) = 2(17x) = 34x = 68
x = 68/34 = 2
9x = 9(2) = 18 ft
8x = 8(2) = 16 ft
Therefore, dimensions are 18 ft by 16ft