The word is CALCULATE. ( to determine or ascertain by mathematical methods; compute
This is an inverse or indirect variation problem that would be set up as y=k/x if you were using y and x. Since you are using h and t, it would look like this:
h=k/t, where k is the constant of variation. Fill in the formula with the h and the t they give you: 2=k/70. Multiply both sides by 70 to get a constant of variation value of 140.
Answer:
Proportional
Unproportional
Step-by-step explanation:
85 -6 = 79
79 -6 = 73
73 -6 = 67
1.49 +10 = 1.59
1.59 + 30 = 1.89
EXPLANATION
Since the circumference of the circle is 9.42, we can get the diameter by applying the following relationship:

Isolating the diameter:

Plugging in the numbers:

Therefore, the diameter is equal to 3 inches.