Answer:
b. -6 d. 9
Explanation:
for b, just plug x in:
-14-6 -20
-------- = ---------- = -5 minus 1 = -6
4 4
for d, you plug k in, following the PEMDAS rule:
9 • 9 ÷ 9 • 9 ÷ 9
81 ÷ 9 • 9 ÷ 9
9 • 9 ÷ 9
81 ÷ 9
9
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