The first few multiples of 4 are [4, 8, 12, 16, 20, 24, 28, 32, 36, 40] and the first few multiples of 12 are [12, 24, 36, 48, 60, 72, 84, 96]. The first few multiples they share are [12, 24, 36, 48, 60] making 12 the smallest multiple 4 and 12 have in common.

If the tiger has consumed 16 pounds of food in 2 days that's \( \frac{16}{2} \) = 8 pounds of food per day. The tiger needs to consume 72 - 16 = 56 more pounds of food to reach 72 pounds total. At 8 pounds of food per day that's \( \frac{56}{8} \) = 7 more days.

To find the average of these 4 numbers add them together then divide by 4:

\( \frac{17 + 9 + 17 + 9}{4} \) = \( \frac{52}{4} \) = 13

A number with an exponent (b^e) consists of a base (b) raised to a power (e). The exponent indicates the number of times that the base is multiplied by itself. A base with an exponent of 1 equals the base (b¹ = b) and a base with an exponent of 0 equals 1 ( (b⁰ = 1).

A factor is a positive integer that divides evenly into a given number. For example, the factors of 8 are 1, 2, 4, and 8.