Let the score on her seventh test be "x".
SO,

∴ He must get 104% on his seventh test to get an average score of 90%
Answer:
x^2 + 14x + 49 = 0
Step-by-step explanation:
Answer:
7/10
Step-by-step explanation:
Out of the ten spins seven landed on blue.
I hope this helps :)
5.9 • 10^4
just add the two numbers because the exponents are equal.
Amanda's method is linear because the number of minutes increased by an equal number every week.