Answer:
Expressions greater than 1 are:
Step-by-step explanation:
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Each number is being multiplied by 3.
Answer:
36.25
Step-by-step explanation:
21.75 divided by 3= 7.25
7.25x5=36.25
Answer: 512
Step-by-step explanation: 1. A=1/2*base*height
12/2=6
2. 6*16*4=512
Answer:
12x+4
Step-by-step explanation:
For the perimeter, we have to add up all sides of the triangle.
(3x-4) + (4x+5) + (5x+3)
3x-4+4x+5+5x+3
(3x+4x+5x) + (-4+5+3)
12x+4