Answer:
108 in²
Step-by-step explanation:
Area of a triangle is given as ½*base*height
The base of the given triangle = h + 6
height = h
Algebraic expression for its area = 
Evaluate the area if h is given as 12 inches.
Plug in the value of h into the algebraic expression:



Answer:
71.25 (or 71 1/4) mi
Step-by-step explanation:
15/4 = 3.75
1 in = 3.75 mi
3.75 × 19 = 71.25 mi
Answer:
6:8
Step-by-step explanation:
2:6 to find the total number of animals add the numbers 2+6=8
since there are 6 swans
6:8
Answer:
In 5:
UM and MS are equal since the diagonals US and VT have perpendicularly bisected each other.
So,15=6x-3
15+3=6x
18=6x
3=x
In 6:
ET=TC
8=x-4
8+4=x
12=x