Since 12.3 is kind of a margin that you have to fit by, the total weight of the golf clubs must be lesser than or equal to 12.3. So, that's your expression:

x represents the number of golf clubs you have.
If this doesn't make sense, feel free tell me!
Answer:
10-(-7) is also 17
Step-by-step explanation:
__-(-__)=__+___
- and - = +
So 10+7 = 17
Happy learning!
--Applepi101
Answer:
90°
Step-by-step explanation:
angle on a straight line=180 and half of 180=90°
Answer:
500-25w
200
Step-by-step explanation:
Answer:
C.8x - 16
Step-by-step explanation:
multiple 4 with 2x = 8x,
then multiple 4 with -4 = -16
add 8x and -16 the answer is 8x - 16