You could round 77 to 80 and 65 to 70 and then add 70 and 80 and you will get 150
Since the formula for the area of a circle is Pi x r squared, the area would be 81 x Pi (you teacher may want you to use Pi as 3.14 or put it in your calculator).
Answer:
86
Step-by-step explanation:
182 – (4 + 92)
I have big brain
Answer: 432
Step-by-step explanation: 4 x 7 = 16
16 x 27 = 432
Hope this helps!