C , the little 5 at the top represents how many times 7 is multiplied.
Answer:
5/100 = 0.056 sales tax
$12+$26+$125 = $163 total purchase without tax
163*0.056 = 9.128 tax based on how much she bought
$163 + 9.128 = $172.128 total amount she paid (b)
Using the red diamond, the light blue triangle, the green circle, and the yellow diamond, the equation can be best answered like this: y = (10/9)x + 55
I drew a line through those points, and I landed on 55 on y-axis
I then used Rise/Run to calculate the slope. The yellow diamond is (71.5, 70) so starting at (58, 55), I go up 15 units and ended at (58, 70).
I then went 13.5 units to the right and ended at (71.5, 70)
Since we went up 15 and 13.5 to the right, we divide 15 by 13.5 and get (10/9) as the answer.
(10/9) is our slope and 55 is our y-intercept so we plug in the numbers into the equation and get the answer: y = (10/9)x + 55
This is the best answer I could get.
Y intercept is 4
Slope is 5x
First equation 2(4X -5y = 4)
8X -10y = 8
Elimination 8x -10y =8
-8x + 9y =-8
-y =0
-1(-y =0)
y =0
8x -10(0) =8
8x =8
(8x =8)/8
x = 1
