Answer:
The answer is 9
Step-by-step explanation:
When 12 is added to twice a certain number and the result is doubled, the final answer gives 60
2x+12; twice a certain number= 2x, plus twelve equals 2x+12
The answer is $6.50 hope this helped
i and e^^
step 1. pythagorean theorem is a^2 + b^2 = c^2 where a, b are the legs and c is the hypotenuse
step 2. 4^2 + 5^2 = c^2
