Answer:The answer is C
Step-by-step explanation:
A. Meters
B. Seconds squared
C. Seconds
D. Seconds per meter
Answer:
4 bags
Step-by-step explanation:
lxw
12x10=120
30x4=120
l=length
w=width
Answer:
4(30 +1)= 4(30) + 4(1)
Step-by-step explanation:
The property states a(b+c)= ab+ac.
30 and 1 equals 31, then you just plug the two numbers into the equation.
Answer:
1. perimeter of Trapezoid = 35x+18
Option F is correct.
2. perimeter of square = 16x-32
Option C is correct.
3. perimeter of Pentagon = 10x-20
Option A is correct.
4. perimeter of Rhombus = 28x+8
Option H is correct.
Step-by-step explanation:
1. Trapezoid Perimeter
Side1 a: 9x+4
Side2 b: 7x+8
Side3 c: 12x-2
Side4 d: 7x+8
The formula used is: 
Putting values and finding perimeter

So, perimeter = 35x+18
Option F is correct.
2. Square Perimeter
Side of square = 4x-8
The formula used is:
where a is side of square
Putting values in formula

So, perimeter of square = 16x-32
Option C is correct.
3. Pentagons perimeter
Side of pentagon= 2x-4
The formula used is:
where a is side of pentagon.
Putting values in formula

So, perimeter of Pentagon = 10x-20
Option A is correct.
4. Rhombus perimeter
Side of Rhombus=7x+2
The formula used is:
where a is side of rhombus
Putting values in formula

So, perimeter of Rhombus = 28x+8
Option H is correct.