Answer:
1.1x10^24
Step-by-step explanation:
First we need to multiply to make the fractions have equal denominators so we can add/subtract.
math: 1/3 x 4/4=4/12
science: 1/4 x 3/3=3/12
Now we can find the time she spent on history (I assume this is what you are looking for)
Total time-math time<span>-science time=history time</span>
12/12-4/12-3/12
=5/12
Amy spent 5/12 of her time working on history.
<em>What phrases describes the expression of 16-y</em>
<em>Answer: -9</em>
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<em>Hope this helps~ </em>
if Raleigh to Cleveland = 585 miles then Cleveland to Raleigh = 585 miles
585 miles + 585 miles = 1170 miles
1170 miles / 18 hours = 65 miles / hour
James drove 65 miles per hour.