Answer:
Question 20 3 < c < 9
Question 21 2.5
Step-by-step explanation:
hope this helps u
15, 16, an 17.
at most 12, meaning it can't be more but can be equal or less than that number.
18-5≠x-5≤12
17-5=x-5≤12
16-5=x-5≤12
15-5=x-5≤12
C
500+450=950
A - 4.5<t<24