So if the 3 is on the outside of the parenthesis 3( it means you have to multiply 3 times the numbers inside the parenthesis. 3 X n+7 + 3n + 21. hope this hint helps.
Answer: x = 35
Step-by-step explanation:
Answer:
266 miles
Step-by-step explanation:
You need to divide 70 by 2.5 equals 28. Than you need to times that by 9.5.
53x2=106
250-106= 144
144/2=72
The length is 72cm
