Tommy wants to make a model of a building in his city. The actual building is 900 feet tall. He wants to use a scale of 3.5 in. = 225 ft. Enter the height of the model.

the height is 14 inches.

Step-by-step explanation:

We know that the actual building is 900 feet tall. Tommy wants to make a model where 3.5 inches represent 225 feet.

So the first step is dividing the 900 feet of the building into groups of 225 feet.

this is:

N = 900/225 = 4

And for each of those 4 groups, we have 3.5 inches in the model, then the height of the model is:

H = 4*3.5 = 14 inches

the circle graph is not a function.

step-by-step explanation:

the graph of the circle is not a function.

because for a graph to be a function, each value of x must give one value of y

in the circle, the values of x for -2< x< 2 each give 2 values of y.

hence this is not a function.

9 sandwiches per hour

step-by-step explanation:

when we have a rate, we want a 1 in the denominator

27/3 = 9

27 sandwiches/ 3 hours = 9 sandwiches/hour