What is the range of the function on the graph?

Help me please quick

D) all real numbers greater than or equal to -3

In other words, it's any number that is -3 or larger.

This is because the lowest point occurs when y = -3. We can have y output values that are this or larger. The range is the set of all possible y outputs of a function.

To write the range in interval notation, we write where the square bracket says "include the endpoint". It's effectively representing the interval

b.) 160 miles on a 5 gallons car

step-by-step explanation:

240/10=24 miles/gallon

160/5=32 miles/gallon

30/1=30 miles/gallon

168/6= 28 miles/gallon

32 miles/gallon is the most amount, so this is the best.