14. 6.4 blocks
15. 1.78
16. 7.47
900 is the answer of 2 squared times 15 squared
Answer:
n = the first
n + 1 = the 2nd
n + 2 = the 3rd
n(n + 2) - (n + 1) = 10(n + 2) + 1
n2 + 2n - n - 1 = 10n + 20 + 1
n2 - 9n - 22 = 0
(n - 11)(n + 2) = 0
If two factors = 0, at least one must = 0.
n - 11 = 0
n = 11
11,12,13
n + 2 = 0
n = -2
-2,-1,0
Answer:
$297.09
Step-by-step explanation:
To answer this question, just add:
163.63 + 133.46 = 297.09
So, Layla spent $297.09 in all
Hope this helps :)
