Yes -1 is a rational number. We can express it as a fraction of two whole numbers
One way is -1 = -1/1
The appropriate compatible numbers to use to estimate would be 20(1/2)
estimated product is 10, took the quiz :)
X/4 = r3 or 3/4
x/3 = r2 or 2/3
x/5 = r3 or 3/5
we know x is not divisible by 4 3 or 5 and is less than 30.
we know the value ends in 3 or 8 from x/5 = r3
we know the value is greater than 3 from r3
so far we got 13 and 23
13 is eliminated from x/4 = r3 because it is r1 not r3
so the answer is 23
C hope that helped have a great time I love it you can do
Midpoint formula ((x1+x2)/2, (y1+y2)/2)
((4+10)/2, (2+4)/2)
answer is (7,3)
