Answer:
A) 143
B) 13.79
C) 14
Explanation:
Frances can complete 91 oil changes in 7 days.
In 1 day, Frances can complete 91/7 = 13 oil changes.
In 11 days, Frances can complete 13 × 11 = 143 oil changes.
At the market, 5 light bulbs cost $9.85.
1 light bulb costs 9.85/5 = $1.97.
7 light bulbs cost 1.97 × 7 = $13.79.
Henry can read 5.25 pages in 3 hours.
Henry can read 5.25/3 = 1.75 pages in 1 hour.
In 8 hours, Henry can read 1.75 × 8 = 14 pages.