anonymous
  • anonymous
Evaluate 3a + 6b when a = 5 and b = –2.4. A. 0.6 B. –0.6 C. –6.4 D. 6.6
Mathematics
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schrodinger
  • schrodinger
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anonymous
  • anonymous
Write the expression that represents 7 subtracted from 8n. A. 7 − 8n B. 8n − 7 C. 7 + (−8n) D. 8 − 7n
anonymous
  • anonymous
Before she went to the grocery store, Jana had 4 tomatoes in her refrigerator. For the next 3 weeks she buys n number of tomatoes each week. Which algebraic expression represents how many tomatoes she has at the end of three weeks? A. 4 − 3n B. 4 + 3n C. 3n − 4 D.
anonymous
  • anonymous
Evaluate bc + 2d when b = −3, c = −7 and d = 2.4. A. 16.2 B. 16.4 C. 25.6 D. 25.8

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anonymous
  • anonymous
Tammy purchases 16 pairs of socks for a certain amount of money. Using s for the cost of one pair of socks, which expression represents the total cost of all 16 pairs of socks? A. 16 − s B. 16 + s C. 16s D.
anonymous
  • anonymous
Tube rental at Totally Tubular is $5 per hour plus an initial deposit of $17. Which expression represents how much it will cost to rent a tube for d number of hours? A. 5d − 17 B. 5 – 17d C. 17 – 5d D. 17 + 5d
anonymous
  • anonymous
Evaluate 12 – 4x when x = 2. A. –4 B. 4 C. 6 D. 16
anonymous
  • anonymous
Evaluate 0.67y + 4 when y = 2 and when y = –2. A. 5.34 and 2.66 B. –5.34 and 2.66 C. –5.34 and –2.66 D. 5.34 and –2.66
anonymous
  • anonymous
Mark has been collecting 11 map pencils each week for several weeks. He then gives 13 pencils to his friend. If p represents the number of weeks that Mark has been collecting pencils, which expression represents the number of pencils Mark has left? A. 11p − 13 B. 11p + 13 C. 11 + 13p D. 13p − 11
anonymous
  • anonymous
Rose blew h bubbles in two hours. Which algebraic expression shows how many bubbles she blew in one minute? A. B. C. D.

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