Answer:
the answer is D
Step-by-step explanation:
this is because the number is unknown so you have to put a variable
Answer: 4
Step -by-step :
7+7+7=21
5+12+a=
17+a
21-17=4
Answer:
1.75 p
Step-by-step explanation:
if you wouldn't mind giving me brainliest, i'm just trying to rank up.
