The area of the triangle PQR is 17.6 square units.
Explanation:
Given that the sides of the triangle are PQ = 12 and PR = 3 and 
We need to determine the area of the triangle PQR
<u>Area of the triangle:</u>
The area of the triangle can be determined using the formula,

Substituting the values, we get,

Simplifying, we have,

Multiplying the terms, we have,

Dividing, we get,

Rounding off to the nearest tenth, we have,

Thus, the area of the triangle PQR is 17.6 square units.
Answer:
B
Step-by-step explanation:
Answer:
c =1.50n +2.50
Step-by-step explanation:
c=1.50(n-2)+5.50
The first step is to distribute the 1.5
c= 1.50*n -1.50*2 + 5.50
c = 1.50n - 3.0 +5.50
Now we need to combine like terms
c =1.50n +2.50