Answer:
123.8
Step-by-step explanation:
nearest tenth is 7 and the sixes aftr it are over half of a full decimal, so they round to 123.8
Answer:
13.8 cm
Step-by-step explanation:
the sides of the triangle measure 3.6, 5.7,4.5cm?
So, we have
perimeter is 3.6 + 5.7 + 4.5
13.8 cm
Answer: 2x+12
Step-by-step explanation:
2(10)+2(x-4)
20+2x-8
12+2x