First you have to set up your equation. 5x+80 and x+15.
4/7 is the simplest form
You can divide 20 by 5 and get 4 and divide 35 by 5 and get 7
Answer:
B.) 18
Step-by-step explanation:
To find the correct b value we use this formula
b² - 4ac = 0
b = What we are solving for
a = 1
c = 81
b² - 4(1)(81) = 0
b² - 324 = 0
b² = 324

b = ±18
And 18 is one of the answer choices
So B.) 18 is the correct answer.
Hey!
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Question #1:
Least to greatest: 1.6 x 10^-2, 16%, 0.2, 3/5, 6^-1, √6
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Question #2:
Greatest to least: 5^7, 9^5, 5.9 x 10^4, 15^4, 7.8 x 10^3
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Hope This Helps :)