Answer:
11
Step-by-step explanation:
2x + 3
2(4) + 3 .......................replace x with 4
8 + 3
11
7.14 mile per hour is how fast she ran
In the given question Laura has $30 to spend on food for the week.
According to the question we have to set the inequality between total amount and amount spent on food.
Amount spend by Laura on food for the week = $30
Let the amount spent by Laura on food be x
So she has to spend up to $30
So inequality will be 
So option b is the answer
Answer:
Step-by-step explanation:
b , n, and a are variables so you cant solve but can be put in an equation which is b+a/n