Answer
#8 is 17.7
Explanation:
13^2+12^2 = c^2
C = 17.7
if you mean the triangle one, it's 25cm
-4.3s + 0.6t - 2.6 is the answer
First convert to an improper fraction:
-5 2/7 = -37/7
-2 1/7 = -15/7
So now you have -37/7 / -15/7
When you divide with a fraction, you just flip the numerator and denominator of the divisor and multiply instead, so
-37/7 * -7/15 = 37/15 which would be in "improper" form.
To convert it to mixed number form it would be 2 7/15
