Answer:
Step-by-step explanation:

b.
an=an-1+3
C.
when x=15
y=3×15-2=45-2=43
a15=43
<span>Simplifying
6x * 3y * 9x2y4
Reorder the terms for easier multiplication:
6 * 3 * 9x * y * x2y4
Multiply 6 * 3
18 * 9x * y * x2y4
Multiply 18 * 9
162x * y * x2y4
Multiply x * y
162xy * x2y4
Multiply xy * x2y4
162x3y<span>5</span></span>
Answer:
The answer is 408
Explanation:
20% of 510 is 102 and 510 - 102 is 408
27 cubic inches
Because you multiply 3x3x3=27