3a(4a – 5) - 4a (6 – 10a)
1 answer:
Answer:
52a² - 39a
Step-by-step explanation:
Step 1: Write out expression
3a(4a - 5) - 4a(6 - 10a)
Step 2: Distribute
12a² - 15a - 24a + 40a²
Step 3: Combine like terms (a²)
52a² - 15a - 24a
Step 4: Combine like terms (a)
52a² - 39a
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Step-by-step explanation:
Answer:
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7 is the number increased by 5 = 12
Answer:
$21
Step-by-step explanation:
$50×.60=$30
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