8-9r is the answer to this
Answer:
180 minutes
Step-by-step explanation:
take 1,620 divide it by 9 and there is your answer
hope this helped
1/5
Any number that can be written in fraction form is a rational number, so numbers like -1/8, 0, 1/4, etc. all work.
13
Explanation: a^2 + b^2 = c^2
12^2 + 5^2 = c^2
144 + 25 = c^2
/169 = c
c = 13