The factors of a number are all positive integers that divide evenly into the number. The factors of 20 are 1, 2, 4, 5, 10, 20.

The equation for this sequence is:

a_n = a_n-1 + 9

where n is the term's order in the sequence, a_n is the value of the term, and a_n-1 is the value of the term before a_n. This makes the next number:

a₆ = a₅ + 9
a₆ = 37 + 9
a₆ = 46

April scored 80% on the test meaning she earned 80% of the possible points on the test. There were 160 possible points on the test so she earned 160 x 0.8 = 128 points. Each question is worth 4 points so she got \( \frac{128}{4} \) = 32 questions right.

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

\( \frac{14 + 6 + 13 + 7}{4} \) = \( \frac{40}{4} \) = 10

To multiply terms with exponents, the base of both exponents must be the same. In this case they are so multiply the coefficients and add the exponents:

3c³ x 8c²
(3 x 8)c^{(3 + 2)}
24c⁵