Answer:
The fourth one I believe
Step-by-step explanation:
Answer:
Step-by-step explanation:
-356.1 + 258.6 = -97.5
Imagine a long timeline with 0 in the middle, on the left we have -356.1 and on the right we have 356.1. Adding numbers makes the timeline move right.
Starting from the left, add (+) 258.6 to the number (moving right along the timeline). As 356 is larger than 258, the scale does not reach 0 yet and therefore the number must be negative.
Using this logic, the answer is 97.5
The perimeter is 41.7
Find the length of each side using the distance formula:

Adding the side lengths, we have
14+7.8+19.9=41.7
Answer:
(0,7)
Step-by-step explanation:
The y-intercept of a graph is the point where the graph crosses the y-axis.
Answer:120.75
Step-by-step explanation:
Multiply
Step 1: 8.50x21
Multiply
Step 2: 2.75x21
Subtract
Step 3 : 178.50 - 57.75