Answer:
B) 18.
Step-by-step explanation:
Add them up then divide by the amount of numbers there are.
B. 18
5+8+16+22+19+27+32 = 129
[There's 7 numbers in total]
129 ÷ 7 = 18.42857143
(With rounding)
18.42857143 --> 18
The right option should be c
The measure of (OH-)
109
(4)28+(-3)
4*28=112
112+(-3)
112-3
Hope this helps, LMK if its right
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