C. 5.75 calories per gram
Edit: 287.5÷50=5.75
402.5÷70=5.75
The equivalent 90° CCW rotation maps (x, y) to (-y, x).
(4, -2) becomes (2, 4) after rotation.
You could try using photo math
Answer:
P = 20 cm
Step-by-step explanation:
The appropriate formula is P = 2W + 2L.
Here that comes to P = 2(6 cm) + 2(4 cm) = 20 cm
Answer:

Step-by-step explanation:

If you want to solve this easily, you can just remove x and add 30x + 60x.

We know that 30 + 60 is 90. So we will add x to 90.

Now you have your answer!
Hope this helps!