Jake has 14 coins in his collection. 112 divided by 8 equals 14.
<h2>
Answer:</h2>
Like you said, we need to use <u><em>substitution</em></u> to solve for y.

Now that we've solved for y, we can plug in the number we got into one of the <u><em>original</em></u> equations. (You can choose either equation, but I will use the first one.)

Now we have the solution of this system.

Answer:
18.19
Step-by-step explanation:
about $4
multiply the bill by 15% to calculate tip
tip = $26.51 ×
= 3.9765 ≈ $4
Answer: 128x^7dx-2240x^6dx+16800x^5dx-70000x^4dx+175000x^3dx-262500x^2dx+218750xdx-7812
Step-by-step explanation:
1) Expand : (2x-5\right)^7dxquad 128x^7dx-2240x^6dx+16800x^5dx-70000x^4dx+175000x^3dx-262500x^2dx
2) Distribute Parentheses
3) Apply your minus/plus rules
+(-a)= -a
128x^7dx-2240x^6dx+16800x^5dx-70000x^4dx+175000x^3dx-262500x^2dx+218750xdx-78125dx