Answer:

Step-by-step explanation:
Given


Required
Find b
implies that:


Collect like terms


Answer:
A. 4x + 2y = 8
Step-by-step explanation:



The slope is -2/1 and the y-intercept is at (0,4). If you start at (0,4), go <u>down</u><u> </u><u>2</u><u> </u><u>units</u><u> </u><u>and</u><u> </u><u>1</u><u> </u><u>unit</u><u> </u><u>right</u>.
Answer:
2 weeks
Step-by-step explanation:
Given in the question that,
Equation that represent Lisa's total amount of money
f(x) = 20 - 13x
Equation that represent Joey's total amount of money
g(x) = x² - 10
To find weeks, x, after which they will have same amount of money, we will equate both equation
<h3>20 - 13x = x² - 10</h3>
x² - 10 - 20 + 13x = 0
x² - 30 + 13x = 0
x² + 13x - 30 = 0
(x - 2)(x + 15) = 0
x = 2 or x = -15
Weeks, x, can not be negative so we will reject x = -15
Hence, after 2nd week Lisa and Joey will have the same amount of money save.
Answer:
B. 6.2
Step-by-step explanation:

Answer:
C C C C C IF ITS WRONG DONT BLAME ME FOR RUINING YOUR LIFE