Answer: 
Step-by-step explanation:
Let us first represent the ratio.
3
Now we need to convert 3
into a improper fraction.

Now it is in its simplest form.
The final answer is 
10 squared = 100
10*10=100
Answer:
102cm²
Step-by-step explanation:
Surface Area = BH +Lp
B is the base area
H is the height of the Prism
L is the slant height
p is t perimeter of its base
B =1/2 ×3×4
B= 6cm²
H = 7cm
L = 5cm
P = 3cm+4cm+5cm
P = 12cm
Substitute
TSA = 6(7)+5(12)
TSA = 42+60
TSA = 102cm²
Hence the total surface area of the shape is 102cm²
Answer:
5.5 or 22/4
Step-by-step explanation:
Pi stands for π which is equal to 22/7
Hence;
(7×22/7)÷4
=22/4 which is equal to 5.5 in decimal
Step-by-step explanation:
Let x be the lost number then
x - 2/3 = 1/2
x = 1/2 + 2/3
x = (3 + 4)/6
x = 7/6