Answer:
Sarah is incorrect.
Step-by-step explanation:
By plugging 10 in as 'x' to the equation, we get y=21+(2*10). 2 x 10 is 20, and 20 + 21 is <em>not</em> 42 - it's 41. So, Sarah is incorrect.
Answer:
Percent of the total food cost: 85%
Cost of the food: $17
Step-by-step explanation:
If the drink is 15% of the bill, then the other 85% is the cost of the food.
85% of 20 is 17
Stay safe! <3
Answer:
4
Step-by-step explanation:
Define coefficient:
a numerical or constant quantity placed before and multiplying the variable in an algebraic expression (e.g. 4 in 4xy).
Hope this helped.
Points
on the circle satisfy
.
Points inside the circle satisfy
.
Points outside the circle satisfy
.
We have

so the point (2, 8) lies inside the circle.