Simplify: a + 2a + 3a + 4a
1 answer:
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The price of an item has dropped to $84 today. yesterday it was $120 . find the percentage decrease.
Answer:
a) 30
b) 144
c) 4
d) 900
Step-by-step explanation:
a) 6 + 24 = 30
b) 6 * 24 = 144
c) 24 ÷ 6 = 4
d)