Answer:
30x + 30y +30
Step-by-step explanation:
Why not write all of the numbers in decimal fraction form, to make them easier to compare?
68 2/3 = 68.666...
72 1/2 = 72.500
68 3/10 = 68.300
74 7/11 = 74.636...
68 1/2 = 68.500
550/8 = 68.750
Now ask yourself: Which of the last four numbers is between 68.666.. and 72.500?
Answer: 179.93
Step-by-step explanation:
The expression 4x^2represents 4.x.x
Your final answer is going to be 4r + 3r ^2 +7
