Answer:
a , b
Step-by-step explanation:
ans this are the variables
Answer: 52
Step-by-step explanation: Not much work with this one but hope this helps :)
Answer: Third option.
Step-by-step explanation:
By definition, the slope of a line can be calculated with the following formula:
![m=\frac{y_2-y_1}{x_2-x_1}](https://tex.z-dn.net/?f=m%3D%5Cfrac%7By_2-y_1%7D%7Bx_2-x_1%7D)
Since you need to solve for
to find an equivalent expression, you can apply these steps:
1. You must multiply both sides of the equation by
:
![m(x_2-x_1})=(\frac{y_2-y_1}{x_2-x_1})(x_2-x_1})\\\\m(x_2-x_1})=y_2-y_1](https://tex.z-dn.net/?f=m%28x_2-x_1%7D%29%3D%28%5Cfrac%7By_2-y_1%7D%7Bx_2-x_1%7D%29%28x_2-x_1%7D%29%5C%5C%5C%5Cm%28x_2-x_1%7D%29%3Dy_2-y_1)
2. Finally, you must add
to both sides of the equation:
![m(x_2-x_1})+y_1=y_2-y_1+y_1\\\\y_2=m(x_2-x_1})+y_1](https://tex.z-dn.net/?f=m%28x_2-x_1%7D%29%2By_1%3Dy_2-y_1%2By_1%5C%5C%5C%5Cy_2%3Dm%28x_2-x_1%7D%29%2By_1)
Given:
Cost of lunch per day = 1 meal and 2 snacks
C = 5.5 + 2(0.75) = 5.5 + 1.5 = 7
7 * 12 days = 84
Based on the choices, the best strategy would be:
<span> A. Make a table. Write the numbers 1 to 12 in the top row of the table (the number of days). In the first box on the second row, write $7. This is how much Rebecca spends in 1 day. In each of the next boxes in the second row, write the amount Rebecca spends by adding $7 to the previous amount. The answer in box 12 is the total amount Rebecca spent after 12 days.</span>