Answer:
$80
Step-by-step explanation:
It's khan so you don't need the explanation but for those interested then here:
K=30x+20 - Kayla
S=35x+10 - Sara
60+20=80
70+10=80
So they match up at $80
An equation is formed of two equal expressions. The solution of the equation is w=3.
<h3>What is an equation?</h3>
An equation is formed when two equal expressions are equated together with the help of an equal sign '='.
In order to solve the equation, we need to isolate the variable in the following manner, therefore, the solution of the equation can be written as,

Divide both sides of the equation by 6.2,

Hence, the solution of the equation is w=3.
Learn more about Equation:
brainly.com/question/2263981
B. cause 222/30,000 you divide them both by 5 and you get 37/5000
<h3>Given:</h3>
Circumference of the circle = 88 cm
π = 22/7
<h3>To Find:</h3>
The Diameter of the circle.
<h3>Formula:</h3>
Circumference of circle = 2πr
r = radius
<h3>Solution:</h3>
Circumference of the circle = 2πr = 88 cm
Circumference of the circle = πr = 88/2 = 44 cm
Circumference of the circle = r = 44 × 7/22 = 14 cm
r (radius) = 14 cm
d (diameter) = 2r = 2(14) = 28 cm
<h2>Answer:</h2>
Diameter of the circle = 28 cm