Answer:

Step-by-step explanation:
We can use the pascal triangle to find the coefficients of the expasion of the cube. It holds that

New Orleans
Indio
Death Vally
Denver
Wenzuan
So average is of the first 6 tests is 82 well that means
(test1 + test2+ test3+ test4 + test5+test6)/6 = 82
so now let do some cross multiplliying
test1 + test2 + test3 + test 4 + test5 +test6 = 82*6
test1 + test2 + test3 + test 4 + test5 +test6 = 492
now lets see if we can find that 7th test score
(test1 + test2 + test3 + test4 + test5 +test6 + test7)/7 = 80.5
So look we found test1 + test2 + test3 + test4 + test5 +test6 to be 492 so lets substitute.
(492 + test7 )/7 = 80.5
test7 = (80.5*7)-492 = 71.5
18-B
I'm not so sure about 19 I know the longest someone can have a loan it's up to 7 years but I would have no idea about credit reports but I would guess they would almost be the same
hope I helped somewhat
Answer: 21 Nickels
21 dimes
8 pennies
Step-by-step explanation: