Answer:
r =29.82
Step-by-step explanation:
r/7.1 = 4.2
Multiply each side by 7.1
r/7.1 *7.1 = 4.2*7.1
r =29.82
Answer: I'm gonna say (3,-2)
Step-by-step explanation: my best guess, bc they intersect
The answer is 277. If you use PEMDAS you would multiply 9x27. Then 2x31. Then add them 243+62. Then subtract 28. Which gives you 277
B. cause it is in sections
Hopefully this will help you