Answer:
Step-by-step explanation:
Let her brother's age be x
Sarah is 2x + 4
<span>
the complete question in the attached figure</span>
The answer is the option A
9.9 grams
because the balance is accurate to the nearest 1/10 gram; thus, the <span>highest level of accuracy appropriate to the limitations of the balance is 0.10 gram (1/10)</span>
Answer:
150.4
Step-by-step explanation: